| Ver | Party Suggestion | HP | Stone | Time | Like | Memo |
 | 6.10 |      
| ~30000 | 0 | ~7 min | 0 | By ravenspire: What, no love for Big Blue? Simply have Droidragon up by the time you hit Ifrit, and mop the rest of 'em up. Hermes' buff should ensure you have enough HP to tank off regular mobs to stall, but keep that low RCV in mind. Echidna can fill in for Orochi, while Sieg and Meg should be max-skilled for best results. |
 | 6.10 |      
| ~24000 | 0 | ~10 min | 0 | By Minori: Store changeable orbs on Brachys, use Top Droid and a sub-color to kill Ifrit, then burst Volcano with your orb changers and row enhance over 3 turns. Subs can be any orb changers, but row enhance awakenings are preferred. You can also use Griffin or Dragon Zombie as a sub. Total attack should be at least 7000 including friend. |
 | 6.10 |      
| ~12000 | 0 | ~8 min | 0 | By 14Fe@r/pad: Gonia doesn't get enough appreciation. It takes a lot of team cost to run this team. Very efficiently clears T5 dungeons w/ some stalling. High health is a plus, with high RCV. Combo is Gonia Active into Dragon Zombie Active, with Draggie boost. Use friend Gonia active to clear sub-boss floors. Use CDD if you're in a pickle. |
 | 6.10 |      
| >8100 | 0 | ~5 min | 0 | By niji: Two wildcards can be random devil type monsters. Use Echidna on 9th floor if needs. Use Sonia and King baddie's skills at 10th floor and should finish the boss in one hit. |
 | 5.40 |      
| ~13000 | 0 | ~7 min | 2 | By QQ: The EZPZ build. TOO EZ to proc and TOO EZ to kill things. Friend can be any multiplier that gets you more than 3x dmg (IE. Karin,Blue Moon Sea Diety Isis,Horus,etc). Umisachi&yamasachi for orb changer so any non REM works too.Karin,Umi and ADK ensures you'll never run out of orbs. Golem strips ifrit naked.420.Blaze it.Win it. |
 | 6.10 |      
| ~15000 | 0 | ~9 min | 0 | By Cullinaire: Stall for gravs if possible - relatively easy to do on Fl8. Wildcard can be poison if you're unsure about Ifrit, but a high RCV card is probably better so you can stall easier. Do a calculation on your highest ATK water card to see if you can break def. Gravs on boss, then Karin active for sure finish. |
 | 5.30 |      
| >10600 | 0 | ~8 min | 0 | By Werdna@PG: current team i use (dont have echinda and didnt do any descends). vamp lord can be used instead of valk, and any water orb changer is good too. make sure to stall, and try to kill floor 9 without haku, but use it if you have to. floor 10 try to make 5-6 combos and you should be fine |
 | 6.10 |      
| ~12000 | 0 | ~45 min | 0 | By minmin: Kill sync'ed monsters first, spam odin's skill; pretty much can't die. Lilith for Ifrit, KoR for HP. Wildcard should be an armor breaker (golem, droiddragon) or a nuke/gravity (luci, hera) or be prepared for a long game. |
 | 6.10 |      
| ~25000 | 0 | ~15 min | 0 | By ravenspire: Self-explanatory - get in there and wipe the floor with everything you see. Pretty simple so long as you don't run out of ammo. Morningstar Ifrit, and be ready to stall at MVD (drop heals and prot if needed). Charge, tank and hit ALL THE NUKES. Max-skill Vamp and (max-Awakened) Megalodran for best results. |
 | 5.20 |      
| ~22000 | 0 | ~20 min | 0 | By ravenspire: How about a cup of refreshing Healer Kool-Aid? Tank-and-spank the hell out of everything (priority on syncs and Ogres). Save Poison for 'lit invades and Ifrit. Slow-burn on MVD while paying attention to heals. Menace if required. Wildcard should be a high HP Healer (e.g. Venus). Time Mage can fill in for Echidna on JP. |
 | 5.13 |      
| ~30000 | 0 | ~20 min | 1 | By Nsbhyfr: Slow, slow clear but extremely solid due to high HP and high RCV
No chance of binds
Minerva for extra dark damage, can be subbed out for any monster with high damage.
RK's for HP and damage. |
 | 5.00 |      
| ~10000 | 0 | ~20 min | 1 | By ⒸⒶⓁⒺⒷ♪: Max ATK and RCV. Target devils so Robe of Protection activates on something else. Use breaker golem on ifrit. Menace and Def stance are panic buttons for boss. Use high attack water monster to chip away at boss(I have hellice demon, because it covers bastet resist). May use healer leader if you have strong waters. |
Extant Red Dragon Caller, Sonia
Extant Red Dragon Caller, Sonia
Extant Red Dragon Caller, Sonia
BAO Batman + BW Stealth (dark/water)
Divine Flying General, Lu Bu
World Tree Sprite, Alraune (just for the auto-heal from awoken skills to be a bit safer, not necessary - a green Odin would be better, too, but I didn't have any available)
Wave 8, I just did damage normally, without bothering to use a Sonia active. Wave 9, Sonia active + Batman skill (2x damage), and Lu Bu did ~50k damage past its defense, with one dark line plus two other dark combos of three orbs each. Wave 10, Sonia + Lu Bu actives for the win. (I had two turns, so if it wasn't dying immediately, I had another Sonia active to use.)
You want burst damage on waves 9 and 10. Alternately, for wave 9, a poisoner or direct damage user (i.e. Ra) can work, but people rarely use those as leader.
My suggestion is the following.
Red Sonia as leader.
Red Sonia
Red Sonia
Any poisoner (Lilith, Neptune, BAO Bane, Ghostring, and probably others I'm less familiar with), direct damage user (Ra, Tenth Angel, and maybe others I don't know of) or defense reducer (Kagutsuchi, BAO Firefly+Flamethrower, Machine Golem, Dark Golem, etc) for wave 9.
Something that gives burst damage for a turn (Lu Bu, D/W Batman, etc) for wave 10.
Whatever else that has an active skill that can be useful to live longer. Echidna, D/D Batman, D/L Batman, Viper Orochi, anything that boosts the strength of fire or dark orbs, green Odin for auto-heals, etc.
You shouldn't mess up, but if you're afraid of that, be sure to have over 14,903 HP to survive the last boss' basic attack. Sonia's RCV boost should allow you to live through the first 7 waves (although you still have to be careful).
Just use a Sonia's active to easily clear wave 8. Or just use normal red and dark orbs to do damage if you think you can kill it before it can attack at all. It's not farfetched by any means. Besides, you have 5 turns to heal if it attacks you, providing you can survive its 11,940 hit, and you should have plenty more health than that.
On wave 9, you can use your poison or direct damage user to kill it in one round (it bypasses defense) or a defense reduction + a second Sonia's active. Kagutsuchi and BAO Firefly reduce defense by half, requiring you to "only" hit about 36k to kill it instead of nearly 72k. Machine/Dark Golems reduce it by 75%, requiring you to only hit about 18k to kill it. Still, use a Sonia active after the defense reduction to be on the safe side.
On wave 10, use a Sonia active + whatever gives you burst damage (Lu Bu, etc). Use whatever else you have left to finish it off, depending on what you used.
Alternately, you can bring a Lucifer or Shinji & Kaworu (300k damage in one turn), for wave 9, if you have something other than Lu Bu for burst damage on round 10, because you cannot use Lu Bu's active skill if you have 1 HP.
Of course, you can also beat wave 9 with raw damage if you don't have any poison, damage that ignores defense or damage reduction, but it may require a burster (D/W Batman, Lu Bu, etc) along with a Sonia active, leaving you with less for wave 10. So it depends on what's available to you. Lu Bu is probably the strongest in terms of raw ATK in this team, so if you can get a lot of dark orb combos for wave 9, you can probably bypass its defense with ease. But you can't afford to mess up there.
I'm just an intermediate player, so there's countless other ways to get through this, and there's probably mistakes in this message anyway. Sorry in advance for any mistake, inaccuracy or omission of stuff I'm unfamiliar with.
UPDATE: finally beat it and had to use a stone
rsonia (uEvo & fully awoken)
dark baron
cerberus
fire/ice ogre
mitsuki (could be any high leveled orb changing healer)
zeromus (could be friend lucifer)
How I played: stall floors 1-7 to get ALL actives (esp your super spike friend leader). grind normal through boss 8 and heal in between, use healer active if necessary. 1 shot boss 9 baron -> ogre. boss 10 cerberus -> rsonia active to take massive life (try to get at least 1 complete row of dark and fire orbs). zeromus/lucifer to finish off before boss's attack.
Why this team - rsonia and zeromus skill up dark/devil teams, so adding cerberus and ogre to increase HP (more important than attack) so you can absorb boss 8 hits. dark baron was the only defense breaker on my team (halves the defense). boss 9 has 72K something defense and halved by baron, skilled up ogre has enough to break the defense and one shot kill. died on boss 10 many times b/c rsonia active wasn't getting equal mix of fire/dark...so finally got it.
I had to stone boss 10 b/c my attack was so powerful and cooldown was 20ish turns, it was hard to stall and needed 2 more turns to activate zeromus. Could've been done without stone easily. Be careful on the PYRO lil sh!ts b/c 5 can appear at once with all synced attack.
Ronia
Lilith
King Baddie
Dragon Zombie
Chaos Devil Dragon
Ronia Friend
It'd be hard to lose.