Midnight Beast Werewolf

He destroys super king gold dragons.

I just used him to wipe out synced Divine Gold Mask and Mythic Mask in the Room of the Mask - Expert (after a carry over defense break from KoR and wiping of room 4 with the aoe from a Chaos Devil Dragon). With my cards he makes an amazing impact for my zombie squad (trying to offset the high HP from those other monsters), and it takes only level 10 and the simplest of evo materials to get him there. Most cards seem to have a strategic value.

We wait for the werewolf to show his true form and not this silly big pawed smiley puppy, though his eyepatch is cool. If he does evolve, do you expect a multiplier added to Attack, RCV or just an even larger HP multiplier?

I Think an Ult. Evol. would something like Weregarurumon from Digimon

http://img1.wikia.nocookie.net/__cb20090128171637/digimon/images/c/c9/WereGarurumon_b.jpg

I heard he is good for S ranking because of his 1 or 2 star depending on evo and high attack power.

Because devil, god and dragon types are special

That's not really true. Devil is special adjacent because it's often paired up with the other two specials, but Devil really is not special. It's the common typing for Dark monsters like Physical with Water, Balanced with Wood, etc. because of their respective slime types.

If it U-Evolve, it should be devil