Walking Ballista [Aether Revolt Prerelease Promos] Fourth Edition among any of the creatures

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

Choose target card in a graveyard other than a basic land card

Set: Betrayers of Kamigawa Type: Instant — Arcane Rarity: Rare Cost: {X}{U}{U} You may exile a blue card with mana value X from your hand rather than pay this spell's mana cost

The cube's surface is pockmarked with jagged runes that seem to shift when unobserved

this expert navigator of the *Weatherlight* believes that scholarship does not necessarily lead to understanding

Walking Ballista [Aether Revolt Prerelease Promos] Fourth Edition among any of the creaturesSet: 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.