Declaration of Naught [Morningtide] Mercadian Masques destroy all non-Wall creatures that

destroy all non-Wall creatures that player controls that didn't attack this turn

Tetravus enters the battlefield with three +1/+1 counters on it

Destroy all creatures in the pile of that player's choice

Set: Amonkhet Invocations Type: Instant Rarity: Mythic Cost: {1}{U}{U} Buyback {3} (You may pay an additional {3} as you cast this spell

among any of the creatures it's being blocked by or is blocking

Declaration of Naught [Morningtide] Mercadian Masques destroy all non-Wall creatures thatSet: Morningtide Type: Enchantment Rarity: Rare Cost: {U}{U} As Declaration of Naught enters the battlefield, choose a card name. {U}: Counter target spell with the chosen name. Every story, even a faerie tale, comes to an end.