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 - $7.75
Lightly Played - $7.50
Moderately Played - $6.25
Heavily Played - $4.75
Damaged - $4.00
Near Mint Non-English - $7.75
Lightly Played Non-English - $7.50
Moderately Played Non-English - $6.25
Heavily Played Non-English - $4.75
Damaged Non-English - $4.00