The Battle Cats - Tornado Carnival II (Deadly)
Get a team suited for Metal Cyclone, since he is the real problem. Once he is down get A. Bahamut into the Perfect Cyclone's LD with Sadako, and use a Titan to do damage as well. All that's left is Cosmic Cyclone, just use Castaway or Psycho Cat and Macho Legs him while stalling it out. I recommend 3 Critical Hit Cats, cause the RNG can be crazy with only 2 Critical hitters.