Slippy's ability would be called "Target." It makes the opponents' moves always hit him. In doubles and triples all of the opponents' attacks hit Slippy instead of their chosen target. Distance in triples (Hitting non-adjacent Pokemon) is ignored.
I'm not easily impressed; I'm usually oblivious to whatever's in front of me. Stunfisk is the epitome of monstrous majestic legendary creatures that spew fire.