By Logan: Sakuya's skills allow you to take down the Keeper, no prob. Gigas blocks its health-bar-smashing hit, while using Vritra afterward does a massive attack. Then Echidna's high RCV gets your team back up to safety. The Aurora dragon gives you solid attack, while Lemon gives you a bit of insurance, should you run out of heal orbs.
By Finngirrl: Lovely, safe and super fast farming.
Ronia lv 34, +8, fully awoken. Subs Chaos Devil Dragon lv 49, +2, fully awoken; King Buddy lv 48, 1 awakening; Empress of Serpents Echidna lv 62, +6, fully awoken and Thorn Proncess Sleeping Beuty lv 51, +2, 3 awakenings.
Golden eggs par excellence with friends high Roni
By god of war: Easy just blast the dungeon and u could stall a bit on any keeper that appears and u wont even get a hit from KOR but if u do i wont matter.
By *A44: Isis leaders to deal enough damage. On FL4 stall. On FL5 pop Echidna, attack. Before KoR hits pop Flashing Field/Heal Barrier/Egg!. Attack with all attributes. If KoR not defeated yet, pop the other Flashing Field/Heal Barrier/Egg! and give him the rest. Works even better with B/L Isis.
By Texas: Unnecessary damage Zeus farming build, still quicker than a luci build. Raphael can be swapped for an angelit. Sweep first 3 floors and stall for Raphael/angelit active on 4th. Make sure you have hp at full going into RK, pop all actives left to right (no need to stall for gravity) and watch 8m damage with a team avg of 50.
By Knuckles: Mono light team - 2x HP pushed it up around 23000HP, max awoken Odin and Lemon Dragon provided plenty of auto heal. Grind and use Val and Odin skills.
By Tex-Rex: Make sure to stall long enough for your skills to cool down. The battles leading up to the boss aren't difficult at all. This team works preferably with Odin fully awoken so he heals every turn but it's not totally necessary as long as you keep an eye on your health. Besides that just do your best to make the D/L/G combos.
By CBKnight: Haven't seen one yet, so: ATTACKER TEAM!
Ult Sasuke & Cao Cao gives 2.7/7.5/1 team - plenty of HP to tank a hit, lots of attack, and flamie for extra burst. Any decent attacker subs will do, I just got a lot of riders in REM.
if you don't have the 23k HP, make sure to stall for flamie!
Open you minds to the power of attack
By Pwnsaur: Pretty straightforward, use Karin to get 12.25x on every attack, Echidna for stall on the keeper if needed and Lilith for extra heal and the dark trigger. The wildcards can be filled by orb changers and stuff with high HP- gigas, keeper of rainbow, etc.
By the stig: LOADS of hp and fire power so you don't have to sweat the beginning, can take all the beating deliver throughout the levels including the keeper of the rainbow with massive recovery and auto heal, but you shouldn't need it with the 3 300k bombs and the ripper with 20,never a problem getting while stalling w/ recovery
By Klaud Nine: OHKO all knights. When you get to the first keeper, stall and heal. On the rainbow keeper, use sonia and king baddie. You should be able to OHKO him. If not, use it again. This team is very quick.
By Djason: High level and max awoken on Lilith would make your life easier (high RCU, longer orb moving time and auto heal). Fl 1-4 stall until skill is charged. Fl 5 pop gravity skills Hades + Hera. Then Luci's morning star drops HP to 1, perfect for Devil Fish's 100ATK bomb.
By Irigium: Stall as well as you can through the first four rounds. On first turn a available facing KoR, use Lu bu's skill and red Sonia's in the same turn. If he isn't dead, follow up with king baddies skill.
By Mega Erno: DQXQ healer build. Levels around 30. Stall on any of the first 4 floors until Echidna and King Shynee are ready. If you're doing one of the early ones, try to kill all but one Knight (2000 dmg per attack). KoR is just for the HP, can be any high HP sub. For boss, activate Shynee and Echidna - kill in one hit usually.
By aisteninja: Try to charge skills before KOR, if not you can still take 1 hit. Ares L69, +43, Freyr L75. Rest around L30. KOR sub in case I needed to take another hit. Apollo/Vamp/Dragon can be subbed for other high HP/ATK fire subs. Once skills charged: Ares>Dragon>Freyr.
By ninjastat: The Ultimate evolutions are not necessary, I just happen to have them. All you need is to stall on the keeper of light or dark until all skills are up, and then on boss, activate in order of siren, angelion, shy nee, and then valkyrie. With a 9 times attack multiplier, you should be able to sweep everything. My levels are 30~ish
By pikachu@pf: easy farm build. you have to sweep through floors 1-3 as the knights are very dangerous to this team's fragile hp, especially when they're synced. i spent a stone on round 3 because my hand slipped and missed the 12.25 multiplier >.< on round 4, stall for seiryuu's active and use dragon knight and vampire as needed. 4th=wildcard
By timmerov: f1-f3: rush. f4: stall and save all red green dark orbs. use forty as needed. f5: pop adk and graviton to turn the screen green. pop draggie and canopus for the overkill.
By shiroi: It's slow, but it works.
The point is to reduce damage as much as possible since Odin's 80% and Drawn Joker's 50% resist stack up, making KoR's attack 2220. Use Gungnir whenever possible.
The other monsters are interchangeable but it's best if you have high RCV and knock out same-turn monsters.
By colblitz: Fast farming build - with high enough levels no actives are needed
By Rubicari: Advanced build for farming. Lvls were 66 and up with only Indra max, helper was 34. Tank through all floors, I made a 6 combo on KOTR and brought him down 50% first shot. No worries on this. If my team was max lvl and awoken, I could probably use double Athena.
By Yen Sid: Lvls between 40-50. Pretty much can't fail. I haven't with this build ever. Any Friend leader that has x2 ATK for Dark will be fine. x2 HP or 2x RCV is a good bonus for a friend leader as well, but at least the x2 ATK. Echidna for safety net, never need it, team cost too high w/ my rank for anything else. Continue in comments...
By Robin Reno: Destroy enemies on waves 1-3, wave four stall on keeper of dark/light, when abilities are charged, move on to the final wave and attack with all you have until he dies, if you need to use your mech warrior skill. Luck on getting it.
By Z: Make sure to charge echidna and Neptune, use the stall from echidna and make lots of combos and if you get into trouble use the divine wisdom skill from Kushi to protect you.
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BigFoig@PG: That team has more than 90k hp?
By SC0TTY D0: Surprised how easy this was. Make sure you use Gravity before Lucifer/Odin/Chaos Dragon attack to get the most out of it. Have Ceres charged before you use Lucifer to refill HP after Lucifer's attack. Ceres should have auto-recover awakened. Can sub Lilith with Chaos Dragon OR leader with dark damage redux. HP never a problem.
By protoman29: the genie's ability has to be used every ten turn so even if you are fighting the keeper of the rainbow and you have both of the genies' skill use one when the he has one turn left. after the next five turns get hit then try to build up your health then when he has one turn left use the ability to build up full health.
By Deathnote: 9x dmg for all dragon types. stall on first couple floors to charge all abilities. On KOTR, pop echidnas ability and all rippers. Match at two sets of green combos in same turn when possible. Pop ADKZ's ability when running short on green. KOTR shouldn't get a chance to attack.
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Kitt: Thank for this suggestion.
This a really efficient builds, it is inexpensive but still able clear in relatively quick time. I used to use safe build for rainbow took 30min, but now take less than 10 min.
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Kattarh: helper fully awoken oden
By Kiwi@PG: each monster's recovery is at around 200. atk around 500. good luck!...oh yea u should have all 5 attribute...yea...u can use the dubs on ur team...and yea...
By Zack: use Thanatos as your leader to increase HP, also use him if you happen to find a keeper of light to avoid damage. Use the Dark golem to lower The Rainbow Keepers defenses, along with posion from lilith and Tiamats and Lucifers sepcials and you should have no problems taking him down.
By Derp: Probably the easiest rank 30 team to make to clear this dungeon. Friend leader can be auto healer or Isis or whatever. Yomi was my first roll so she can be replaced with a carbuncle if you need more RCV. If you can't tank the knights, kill off the synced ones first. Just keep matching orbs to victory.
By Dave@r/,PG: Pretty straightforward resist team. Feel free to use Siren instead of Mega. For wildcard I used a Lilith with auto-recover, use any healer or high-RCV dark instead. If HP is tight with boss, wait until Hera does 128k or less damage before using Luci. Use skills liberally versus random waves. If no Hera, use well-rounded dark.
By Kopteff: A really safe dark party pick. I was able to get both tuesday and wednesday dungeon with this party. The good point of this party is that this is even safer than odin or amaterasu. Chaos devil dragon can be replaced with other dark monsters, such as Lilith (posion). After u get keeper of rainbow, you can also use it.
By Joe: Min. lvl 30 for all monsters. Speed through first 3 floors. Fell free to use CDD nuke on Fl 4. Stall until all both Heras and Seraphs are up. Use both Heras on RK then both Luci, finish.
By cam: Pretty simple build. 3rd and 4th can be anything. Doesn't rly matter. Just stall on 4th floor and use 3 morning stars on 5th then attack once.
By ELCT: Just fall comfortably below 80 percent. I usually go to about 30% and just start wrecking on everyone. I often dont even need flamie to one shot Keeper of rainbow. This dungeon is no match.
By Lukaria: Works with Pre-EVO haku. Any water sub work. I used a Dub-sapphilit because of low team cost. Any dark sub if you don't have Eco
Strategy:Pull a Haku combo for stages 1-3. You should be able to 1 hit all of them. Stall on round 4.(You stall for Haku and Echidna, rest are optional) Last: 2-3hit kill. (+1/2 If no Eco.)
By Ethan: Water & Wood subs can be anything. Stall on the Light/Dark Keeper. Use all 3 gravity's, then use Echidna's Menace. Match orbs to get x25.
By WhiteFire: This team is great against the Keepers, but the knights in the first 3 floors can be trouble. Don't bother charging skills, just pommel them. Skills will charge plenty against the keepers. Bring patience and use Verche + Dragon Rider together for serious damage against Rainbow.
By M.F.A.G: So all you really need is the demon viper orochi for its leader skill
"Perseverance" which means it'll live as long as you have over 50% health. Although if you are hit by two monsters at once and one brings you to 1 hp, the other will kill you. the rest of the team wasn't as important.
By Zgod: Fast. Need to stall 6 extra turns to charge Echidna meaning don't 1 shot everything. No need for evolved or high level though they help with hp and rcv for stalling. 4 and 5 can be both light subs (recommend one Verche). Save echidna and 2 Leilan's for KoR (you have plenty of time to do x12.25).
By Ninjai: Simple and safe multi color zombie team. Ogre to keep you alive, dragons nuke every 15 turns, and a strong healer. Monsters' average in the 30's. If I had more light nukers, I'd use them. One of the keepers will stall you enough for the initial nukes on the boss. Key is Ogre and Healer.
By kivanc: Keep your HP full in the 4th and 5th level before the keepers attack and you cannot die. Snow globe dragon helps for regeneration, naga is there just for emergencies (I did not need her). Odin's skill helps a lot (damage) and phoenix knights refresh the orb flux.
By djC: Blast through the first rounds - KOR will take long enough to charge skills anyway. Earth guardian is just there to offer another element option for matching 3 to trigger the 3x from Isis, and can be anything else. Echidna skill gives you longer to recharge, and Gigas resolve survives each hit from KOR.
By $kyion@pf: jst 16x everything. Rk only needs 3 turns to be dead. and zeus and hera not needed. all spots should be one of each type
By jeriko@PGF: Easy build. 1, kill one knight and stall (with red and green orbs) for dragons' skills. 2, rip one dragon. 3, rip again. 4, just attack and nuke with snow globe and dragons when available. 5, same as stage 4, just longer.
By William: Really easy farming build. SODL can be subbed for a strong light monster, but if you ever take long enough to have his skill up, KoR should be dead after you use it. Very easy to heal up after he hits you because he takes 5 turns to attack. Use Odin/Verche skills as much as possible.
By Bonehead35: charge up skills during stage 1-4. and then prolong keeper of rainbow with Echidna, then change orbs+ freyr skill+ horus skill . you will have 6 rounds to finish him off, which is enough.
By foosean010: Build skills on floors 1-4. On RK, use Kirin>Odin>Dragons>Cu Chu if you've got enough hearts. If you can get a couple 5x atks in, you'll have him down within 15-20 turns.
By Crim JW: fairly standard early burst build provided you have Horus. Machine golem for armor break to make it go faster + extra damage, Midgard can be subbed for another golem or another high health monster just for head room. Siren skill level 1 just in case, rk can be subbed for w/e, odin should be fine too
By rvn@mit: Easiest team for players with rank <50 : Resolve+Isis team! Subs just need at least 450 Atk, 200 RCV and cover all 5 colors: such as dub-sapphlit/emalit etc/healer girls/starter dragons. With 450 damage x3combos (x3 isis leader skill) guarantee to kill one knight. Make 3combo each turn with different colors and it just takes tim
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spon224: hey rvn@mit
By $kyion@pf: Zero-stone farming build. I didn't see a Zeus build here so I am recommending it. Obviously an advanced build, not reccomended for begginners. Clear first floors quickly if you want. Zeus gravities not necessary, but definitely better for safe players. On Rk, Zeus Gravity(if charged) Menace Verche Valkyrie and dead Rk
By Paul J: Double ChuChu gives x9 to all monsters but Echinda. You can technically sub Verche and Homura for any high-attack BALANCED monsters. Stall for 15 rounds before the boss (super easy) then for boss, use Echinda and King Woodsie. This should easily kill the boss in 2 - 4 turns.
By Satan: Clear mobs and save all skills during round 4. You'll need them for rainbow keeper. Delay him when possible with orochis skill. And when he hits you use vritras skill. Other than that try to have multiple rippers and use them every chance you get. Leader should always heal you enough but use her skill when needed.
By maus: VERY safe build, if a bit monotonous.
Can be any Resolve leader and auto-healer. Orochi recommended b/c of Force, Siren b/c hearts.
Siren and Echidna:
Siren for reliable hearts (Max skill pref.), Echidna for >2 monsters w/ same turn.
Go for attack power. A monster that can hit multiple enemies
By wakka: Max Skill Siren makes it much easier. Make sure to heal manually. It can be done shorter and with no stones but I was not watching the RK's turns. If you are good at matching orbs to activate 5x Kirin, you can fly through RK. Watch out for floor 3 but one 5x Kirin will clear floors 1-3
By 行深般若波罗蜜多时: Safe and very low required team. The time it takes to clear depends on the Party #3, 4, 5 monsters you put on, but generally they can be anything.
It will be better if you have a full skill naga, but her skill only is used for safety on the 2nd and 3rd battles. 4th and last battles are time consuming, but no problem to win
By PAD Expert: To Lightning Holy Dragons can be substituted for anything, however it is preferable to have all monsters except for leaders to be lightning holy, chaos devil, ice aurora, etc. just tank it through the floors 1-4, use abilities as panic buttons. On boss, just keep attacking and using your abilities, archangel will auto heal.
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Tony: I hate to break it to you, but I don't think you're much of an expert if you have to use Odin/Autoheal. I clear this dungeon with my Lakshmi and a Water Dominion Gabriel helper.
By T. C • PG: For weaker players and lower ranks, takes a while but other monsters besides leader and helper can be anything that have around 600-800 attack.
By vitaliy: Have Arch Hades and Lucifer on your team and another Lucifer has FL. First, have at least 13k hp, blast through to stage 4 and charge up your skills and attack at the same time. When on stage 5 use "Arch Hades" skill first than use Lucifer, done all in one round. Use FL Lucifer and attack. Should be able to kill before he attack
By greenprint: For a safer play, stall on first 3 floors to get Echidna skill ready.
By The7Plys@ε: Easy sweep team. Just match Wood and Light Orbs as you go. One mass attack with a 2+ combo will clear each wave with no problems. Stall on Wave 4, to charge King Shynee. Wave 5 - Use CoC Healer/Valkyrie/King Shynee skills to OHKO Keeper of Rainbow.
By Sonofyin: Pretty new at this game but this build has been working for me. Only important monsters are alraune so that she can heal u every orb match, and ur friends leader must be Odin so that it greatly reduces damage when facing any of the keepers. I use the guardians for the half damage skill in emergencies. Party 4 should be a high hp
By DDubolU@PG: Charge up skills early. Use Angelion's skill only if necessary. Same with Raphael. Only use Genie's skill in the Boss Battle Stage. Keeper of Light is for HP (a little) and you can use his skill if needed. If you pay close attention to turn counters and take your time, you shouldn't really have many problems.
By Grimise: This setup worked well for me I was actually able to safely farm my keepers with it so I thought I would share, verche was just an orb changer to help speed up the keeper fight.
By 667 Chainz: Isis provides high Damage output to kill KOR quickly and odin protects againt high damage you wanna u lightning holly and odin's abilities to quicken up the process and Apollo's ability is also to speed it up. Echidna and ceres are for emergencies and Ceres can be replaced with a highish Lvl Alraune.
By ngrdix: Easy build for non-IAP players. Build here should have you approaching or breaking 40k in HP, at which point basically nothing can do enough damage fast enough to kill you. StE is level 50+.
KOR killed with repeated KOR -> nuke -> vritra, skill combos right after KOR attacks.
By Jorge: Easy and safe. 1-3 make sure not to get hit twice in one round. For the keepers just build up all skills and use them like so: Thor > Dragon > Odin > Verche > match orbs > Siren > Apollo > match orbs.
By Dynamo: Lower monster build. Odin required for 80% reduction, making Rainbow hit for 4440. Echidna as backup in case you can't heal to max and an ultimate Ogre as a safety net if you have to take a hit. Rainbow has 5 turn wait so you can heal between if RCV is high.
By Midnght: Any good healer that nets you 1k per auto will do you well.
Ama works well as she's white attack but really doesn't matter so long as they heal 1k per turn or more. Stay max healed. Build up on the last keeper. Depending on your levels you get real close to a preemptive kill. My current levels knock him down to his sword tip. ;
By Anup@PG: Charge up the skills of Seraphim Lucifer. Make sure to keep you HP>1 after each hit of Lucifer. If HP is 1 then the skill wont work. 3 smashes and RK is down. Easiest and fastest of all
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$kyion@pf: who the fk has 2 lucifers
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Kopteff: I don't think people with 2 lucifers need the suggestion to be honest xD
By yumiya: with a team cost of 64, this is easily beatable with Baal and Odin as your leaders. Siren lvl 26. Verche was Max lvl. Having Baal it only takes about 1-2 hits on the first 3 battles.
As long as you always have full live, KoR deals 4440 damage on you. and you have plenty of time to heal back.
I didnt even use KoF's abilities.
By zaisha@pfg: stall to get shynee/enchida on RK, then pop siren + valk, impossible not to ohko keeper
By Kirin@PV: Actually, you only need parvaty and other monster that have good RCV, with Odin friend, it is easy to beat Keeper of Rainbow safely!
when I first beat Keeper of Rainbow, I thought I can't but actually, this dungeon is easier than I thought since i leveled up my monster!
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Jasper ^^: But... we are trying to do this dungeon in order to get the Rainbow Keeper. We cant possibly do this build when we dont have ANY RK because we obviously didnt beat it yet!
Any subs for RK in the team?
By 美少年@PG: Chaos Devil Dragon can be subbed with any dark damage halver or Ult. D'spinas or Another Seraphim of Dawn Lucifer. #2-5 can all be replaced with any high hp/atk dark monster. Yomi is really useful when you run out of heal orbs. After every attack try to get 11-12k HP left and just stall for Rainbow until you can kill w/ Lucifer
By イリヤ★(｡ŏ﹏ŏ): You don't necessarily have to charge King Shynee, just make sure your orb changers are up by the time you get to RK and you should be able to take him down before he has a chance to hit with your orb changers and decent combos.
By Austin@pg: Really easy build. Last boss won't even attack at all. Gravity then two morning stars should kill it. No skill required. Keepers can be replaced with anything since they won't do anything.
By ☆☆☆☆☆: Meteor Volcano And Crystal Aurora can be replaced by any dragons with at least 1k500 hp . The multipliers give you around 35000 hp. The shields keep regenerating so the damage you take is limited.
By brianc@pg: Amaterasu can be switched with any monster with a similar leader skill. Awoken odin is a must. Be sure you have full hp every time KOR attacks. If not echidnas skill can be used. You don't necessarily need machine golem just monsters with high hp. Have a monster that has decent rcv besides amaterasu.
By Lightli: Everything is very high in level. Charge up skills on Round 4. Pop everything but Lucifier on Round 5, hit him as hard as you can, and then pop Lucifier next turn. Last slot should be a way to further increase burst damage, like Cerberus, Yomi, or another orb changer.
By Fluffle@PF: Your typical mono-color, all members can be replaced with different color equivalent. Store skill for the heart breaker and mystic knight at first floor, then proceed to wipe floor 2-3 with 5x1+3x1 of same color orbs (3x2 if opposite element). Nothing needs to be evolved, Naga and toy were panic buttons that were never used.
By Heroics SA: You can use all Dubs, or an extra orb changer. Fire Lucifer against Dark or Light Keeper in stage 4 if you like. Easy to return to full HP in the 5 turns allowed. Fire Lucifer at RK right after he triggers damage on you. If you have an RK and team cost, slot it right in to your team.
By pixie@pg: Misfit team. Ancient light dragon's 9-turn nuke refresh helps when stuck on synced knights. Light keeper can take a while. Could sub out the demon for any nuker and the rainbow keeper for anything with decent HP (e.g. golem).
By Kohta-kun: Safe build, Keepers are mainly to keep health above 11,100 but can be used in a pinch to negate and extra 50% of damage. Holy Light Dragon is a good choice for 4th slot for damage, as is Ohkami, but any healer would do.
By No.2Pencil: Charge up lucifer twice. Stall as long as possible.
By Geoff*@PGF: Only need to charge Echidna's skill before stage 5. Max skill CDK and Duke is helpful so you can use skills twice before he hits. If you are running a very low level team and can't kill him in 7-9 turns, charge Ultra Gravities and Wrath of God before stage 5.
By ⒸⒸ: Mono-Team theory: Requires Greek 2.0 God tier 2. Then choose Greek 1.0 Dark busty of matching color or a duplicate of your leader. This build is advantageous because it's relatively fast (you get at least 2x attack), low hp / level requirements, and you don't have to go out of your way much to make a team.
By Vikram@PG: self explanatory. double gravity + 3 light ripper attacks (holy dragon, mech dragon and odin) make it a short fight.
By Rowing: Do not need to charge any skill except Echidna's one. Very Easy for the first 4 levels. Need 18x 3 or 4 times to beat Keeper of Rainbow in 8 rounds. Not very hard.
By Steven: Really easy to craft resolve team. Fully evolved rippers face roll first three levels. Vritra can hit Rainbow Keeper for 100k every three attack cycles, just make sure to use the ability right after he drops you to 1hp.
By 古九寒 van@PF: This build requires your skill more than your pets. It is more of a minimum requirement than a fail-safe approach. Your hardest encounter will be stage 3. Use skills if you have to. At final boss, keep your health above 70%. Use Echidna if boss will attack before you are ready. Siren is also a good choice.
By Anon@PF: the main idea of this build is to reach the boss safely, and then by doing 1 combo the turns pass by quickly and your friend healer heals you completely in the 5 turns and you can activate the dragon skills~ holy dragon does 40k dmg so the faster is your turn faster their skills will be available to use~
By MeiDango: This is kind of an unorthodox zombie team. The fact that the last two stages only consist of single bosses that take 3/5 turns to attack, allows healing to 70%+ hp to be easy. Practically, anything could work as a sub, but I found that it was easiest for me to use this build when I was still starting out.
By keith: nice and safe
By N/A: Just need enough hp to take knight hits while charging skills. Rainbow will die before he can attack if you use all your orb changes and gravity on him.
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James @PG: LOL, Jeff. You might as well submit this team to almost every other dungeon in the database. :P
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James @PG: That and anyone who has managed to put it together knows what it is capable of.
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N/A: HUE HUE HUE HUE TROLLFACE
By Lucky Ken: Build:
The monsters can easily be found in normal dungeon.
Final AMA or Siren.
3 Ogres good against 3 elements, charge up ability during the 1st and 2nd floor and use on the 3rd floor.
Vampire good against Keeper of the Light and also good for assisting Verche against Keeper of the Dark and the Rainbo
By only1me@PG: Super easy and safe build. Can use Either loki or persephone for friends but loki clears faster. can switch a keeper for another orb changer like CDK but will need loki and persehphone to be 55+ to get 22201 Hp
By YCYC: Extreme safe team. It will be much faster if you have Neptune, team member 3-5 are up to player decide, my team cost was too slow so I just push some Dub into it.
By Evil @PG: For those starters that has the rippers evolved at least you just need a healer with rondo of healing leader skill or an eveolved amaterasu and with a odin helper and you are fine. The rippers is just to kill the rainbow keeper faster but if you dont have any rippers any monsters with big damage are enough.
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Xenthia Li: This build worked like a champ!
By 00-Raiser: Odin+Hades can Lower the Damage which the Keeper dealed.
The keepers in your team are to boost HP and increase defend if neccesary. Great Valkyrie is to make RCV become not too low and creat Light Type Output. May add a Armor Breaker to destroy the keeper more easily.
By potato: you can do this with basically any mono team with an odin as lead and siren as sub. light is just easier since it does quadruple damage to rainbow keeper. Gravity is also a nice skill to have but definitely not needed. Just make sure to heal before rainbow keeper attacks again.