Darksteel Citadel

Destroy all enchantments.

Heroic — Whenever you cast a spell that targets this creature, put a +1/+1 counter on this creature and prevent all damage that would be dealt to it this turn.

Return each creature card with mana value X or less from your graveyard to the battlefield. Exile those creatures at the beginning of your next upkeep. Exile Rally the Ancestors.

Enchant artifact Enchanted artifact is a creature with base power and toughness 5/5 in addition to its other types.

Flying Whenever another Spirit you control enters, this creature gets +1/+1 until end of turn. Sacrifice this creature: Counter target instant or sorcery spell unless its controller pays X, where X is this creature's power.

Lifelink If a nontoken creature an opponent controls would die, instead exile that card and create a 2/2 black Zombie creature token. 2B, Sacrifice another Vampire or Zombie: Put two +1/+1 counters on Kalitas.

A deck can have any number of cards named Shadowborn Apostle. B, Sacrifice six creatures named Shadowborn Apostle: Search your library for a Demon creature card, put it onto the battlefield, then shuffle.

If an opponent would gain life, that player loses that much life instead.