Charybdis

Defender, deathtouch, reach.
{3}{u},{t}, Exile Charybdis. Return it to the battlefield tapped under its owner's control
at the beginning of the next end step.
Charybdis lurks below to swallow down
the dark sea tide.
...if you come upon her, then the god who
makes the earth tremble could not save you.
-Homer