Sezuthal, The Ensnaring Deep

Whenever Sezuthal, The Ensnaring Deep or any kraken, leviathan, octopus, or serpent is cast they
gain lure. (choose target creature, that creature must
attack you if possible on its controllers next turn)
All krakens, leviathans, octopuses, and serpents
have trample and deal damage using their
toughness when blocking lured creatures.
Whenever a lured creature dies, you may mill the
top card of your library and cast a card from your graveyard this turn.