Doomsday (Invocation) [Amonkhet Invocations] Forest Set: Aether Revolt Prerelease Promos

Set: Aether Revolt Prerelease Promos Type: Artifact Creature — Construct Rarity: Rare Cost: {X}{X} Walking Ballista enters the battlefield with X +1/+1 counters on it

Whenever an opponent casts a spell

Set: Fifth Edition Type: Artifact Rarity: Rare Cost: {1} Creatures with power 3 or greater don't untap during their controllers' untap steps

defending player sacrifices two permanents

you may put its +1/+1 counters on target artifact creature

Doomsday (Invocation) [Amonkhet Invocations] Forest Set: Aether Revolt Prerelease PromosSet: Amonkhet Invocations Type: Sorcery Rarity: Mythic 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.