Urizen, True Form

Trample, Hexproof, Lifelink
Blood Ascended—If a source you control would deal damage to a permanent or player, it deals double that damage instead.
Reality Collapse—Whenever Urizen deals combat damage to a player, exile the top X cards of that player's library, where X is Urizen's power. You may cast one nonland card exiled this way without paying its mana cost.
If Urizen would be destroyed, sacrifice another creature you control instead

"I am power, absolute."