Koloro Crab

Unite (This permanent enters the battlefield with a devotion counter on it for each color this permanent shares with each other permanent you control.)
As long as Koloro Crab has 5 or fewer devotion counters on it, it has {u}: Add {w}, {b}, {r}, or {g} to your mana pool and put a devotion counter on Koloro Crab. Activate this ability no more than once each turn.
"He's a bit Crabby."