Osiris, God of Death

Osiris, God of Death cannot be exiled. If he is on your graveyard, treat it as he was on the battlefield
(Can attack, block and activated his abilities.).
You can't have more than one copy of Osiris, God
of Death in your deck.
You may play cards from your graveyard. your
cards cannot be exiled.
Osiris, God of Death cannot attack unless he is in your graveyard.