Xallagriff, God of Undeath

Indestructible, hexproof, deathtouch, lifelink
Zombies you control get +5/+5 and have menace.
Xallagriff , God of Undeath can't be countered.
When Xallagriff dies or is put in exile return it
to play, you lose 8 life.
You and your graveyard has hexproof, put your
hand and library into your graveyard, you do not
lose the game for having no cards in your library
you may play cards in your graveyard as though
they were in your hand