Doomsday [The List] Return to Ravnica Ixidron's power and toughness are

Ixidron's power and toughness are each equal to the number of face-down creatures on the battlefield

Angels guard me while I dream

who may not set foot on a battlefield for many years

Set: Innistrad: Crimson Vow Type: Legendary Creature — Slug Horror Rarity: Mythic Cost: {5}{B}{B} At the beginning of each end step

Activate only if an opponent was dealt damage this turn

Doomsday [The List] Return to Ravnica Ixidron's power and toughness areSet: The List Type: Sorcery Rarity: Rare Cost: {B}{B}{B} Search your library and graveyard for five cards and exile the rest. Put the chosen cards on top of your library in any order. You lose half your life, rounded up.