Drill Shot (Yellow)

If this has an aim counter, it gets piercing 1.

When this hits a hero, put a -1

counter on an equipment they control.

Piercing X - If this is defended by an equipment, it has +X{p}.

Piercing X is a static ability that generates a continuous effect.
If an attack with Piercing is defended by multiple equipment, it does not gain +X for each defending equipment.
If an attack has multiple instances of Piercing X, each effect is evaluated and applied separately.
If an attack with Piercing is no longer defended by an equipment, it loses its +X bonus.