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 - $7.25
Lightly Played - $7.00
Moderately Played - $5.75
Heavily Played - $4.50
Damaged - $3.75
Near Mint Non-English - $7.25
Lightly Played Non-English - $7.00
Moderately Played Non-English - $5.75
Heavily Played Non-English - $4.50
Damaged Non-English - $3.75