Aggravated Assault (Invocation) [Amonkhet Invocations] Elemental Snake there is but one creed:

there is but one creed: Chaos shall reign

Set: Outlaws of Thunder Junction Prerelease Promos Type: Legendary Creature — Skeleton Rogue Rarity: Mythic Cost: {B} Deathtouch

Set: Prophecy Promos Type: Creature — Avatar Rarity: Rare Cost: {6}{W}{W} If you have 3 or less life

Set: Amonkhet Prerelease Promos Type: Land Rarity: Rare Indestructible

Valki becomes a copy of that card

Aggravated Assault (Invocation) [Amonkhet Invocations] Elemental Snake there is but one creed:Set: Amonkhet Invocations Type: Enchantment Rarity: Mythic Cost: {2}{R} {3}{R}{R}: Untap all creatures you control. After this main phase, there is an additional combat phase followed by an additional main phase. Activate only as a sorcery.