Trimantean Guru

Homunculi, cyclops, and other eyes get -X/-X. X is equal to Trimantean Guru's power. (Including sign.)
Whenever a cyclops, homunculus, or eye attacks and isn't blocked, you may surveil 2.
Devolve (Whenever a creature enters the battlefield, if its power or toughness is less than this creature's power or less than this creature's toughness, put a -1/-1 counter on this.)