Walking Ballista (Future Sight)

Set: Mystery Booster 2 (#238)

Rarity: Rare

Type: Artifact Creature — Construct

Mana Cost: {X}{X}

P/T: 0/0

This creature enters with X +1/+1 counters on it. {4}: Put a +1/+1 counter on this creature. Remove a +1/+1 counter from this creature: It deals 1 damage to any target.