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.
Near Mint - $13.25
Lightly Played - $12.50
Moderately Played - $10.50
Heavily Played - $8.00
Damaged - $6.75
Near Mint Non-English - $13.25
Lightly Played Non-English - $12.50
Moderately Played Non-English - $10.50
Heavily Played Non-English - $8.00
Damaged Non-English - $6.75