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 - $18.30
Lightly Played - $14.60
Moderately Played - $12.80
Heavily Played - $11.00
Damaged - $9.10
Near Mint Spanish - $18.30
Lightly Played Spanish - $14.60
Moderately Played Spanish - $12.80
Heavily Played Spanish - $11.00
Damaged Spanish - $9.10