When a friendly unit's attack ends: If it dealt 3 or more combat damage to a base, you may exhaust this leader. If you do, give an Advantage token to a different unit.

Deployed Leader Unit:
Saboteur (When this unit attacks, ignore Sentinel and defeat the defender's Shields.)
When a friendly unit's attack ends: If it dealt 3 or more combat damage to a base, you may give an Advantage token to a different unit.