Gorebyss

You may sacrifice a creature named Clamperl and
pay {u} rather than pay this spells mana cost.
Last strike, flanking (Whenever a creature without
flanking blocks this creature, the blocking creature gets
-1/-1 until end of turn.)
Ingest (Whenever Gorebyss deals combat damage to a
player, that player exiles the top card of their library.)
Gorebyss loses last strike and has trample and
skulk as long as the defending player this turn
controls an Island. (Creatures with s