Zezarath, Sea Conduit.

when Zezerath, sea tyrant enters the battlefield, if it escaped gain control of
target creature.
Escape-{u/r}{u/r}{u/r}{u/r}{u/r}{u/r}
when zezerath enters the battle feild draw X cards and deal X damage
to any targetwhere X is what you paid plus
the number of instant and sorcery
cards in your graveyard.