Twilight, the Afterlife

Flying, vigilance, lifelink, indestructible
Whenever another Zombie enters the battlefield
under your control, draw a card and gain 1 life.
If Twilight, the Afterlife is in your graveyard,
you may cast Zombie spells from your graveyard.
Whenever a non-Zombie creature dies, create a
2/2 black Zombie creature token.