Corphish

You may cast Corphish from your graveyard if
you sacrifice a Fish, Clam or Oyster in addition
to paying its mana cost to cast it.
Absorb 1 (If a source would deal damage to this
creature, prevent 1 of that damage.)
Last strike (This creature deals combat damage after creatures without last strike.)
You may exert Corphish as it attacks or blocks.
If you do, it gets +X/+0 until end of turn, where
X is it's toughness.