Walking Ballista [Aether Revolt Prerelease Promos] L+20 but sometimes mouthguard gamers wanna

but sometimes mouthguard gamers wanna get physical and refuse to share the glory

Salvage Operation

Set: Amonkhet Invocations Type: Instant Rarity: Mythic Cost: {3}{U}{U} You may pay 1 life and exile a blue card from your hand rather than pay this spell's mana cost

2 black commons or uncommons

Walking Ballista [Aether Revolt Prerelease Promos] L+20 but sometimes mouthguard gamers wannaSet: 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. {4}: Put a +1 +1 counter on Walking Ballista. Remove a +1 +1 counter from Walking Ballista: It deals 1 damage to any target.