Walking Ballista [Aether Revolt] 256 Set: World Championships 2004 Type:

Set: World Championships 2004 Type: Item Rarity: Uncommon

Enchanted Wall can attack as though it didn't have defender

Set: Antiquities Type: Artifact Rarity: Rare Cost: {1} {6}

Set: XY: Ancient Origins Type: Fire Rarity: Uncommon Retreat cost: Colorless

if you control three or more artifacts

Walking Ballista [Aether Revolt] 256 Set: World Championships 2004 Type:Set: Aether Revolt 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.