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Description
| Set: | Double Masters |
| 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.
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