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 - $11.00
Lightly Played - $10.50
Moderately Played - $9.00
Heavily Played - $6.75
Damaged - $5.50
Near Mint Non-English - $11.00
Lightly Played Non-English - $10.50
Moderately Played Non-English - $9.00
Heavily Played Non-English - $6.75
Damaged Non-English - $5.50