Okkoto, the Raze-Boar

Trample
Whenever Ilharg, the Raze-Boar attacks, you
may put a creature card from your hand onto
the battlefield tapped and attacking. Return that
creature to your hand at the beginning of the next
end step.
When Ilharg, the Raze-Boar dies or is put into
exile from the battlefield, you may put it into its
owner's library third from the top.