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.
NM-Mint - $6.90
Lightly Played - $6.50
Moderately Played - $6.20
Heavily Played - $5.50
Damaged - $4.50
NM-Mint Non English - $6.90
Lightly Played Non English - $6.50
Moderately Played Non English - $6.20
Heavily Played Non English - $5.50
Damaged Non English - $4.50