Walking Ballista [Aether Revolt Prerelease Promos] Bear Set: Alliances Type: Artifact Creature

Set: Alliances Type: Artifact Creature — Phyrexian Construct Rarity: Rare Cost: {6} When Phyrexian Devourer's power is 7 or greater

sacrifice it

choose a basic land type

Sacrifice Scalding Tarn: Search your library for an Island or Mountain card

wizard adept

Walking Ballista [Aether Revolt Prerelease Promos] Bear Set: Alliances Type: Artifact CreatureSet: 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.