Sahagin

Whenever you cast a noncreature spell, if at least four mana was spent to cast it, put a +1/+1 counter on this creature and it can't be blocked this turn.

*"Pshhh... Shhhilence, shhhorewalker! Try to eshhhcape, and I'll shhhlice gills into your neck!"*

Power/Toughness: 1/3