[@BrokenPromise] Sure. For Win-Lose then, just say something like 'On Tetrad's first shot, a D20 is rolled. If that shot hits an enemy combatant, the buff or debuff triggers.'

[@Ponn] So here's the question. Are you intending on it being a 'debuff' to the target's defense that others can take advantage of, or are you intending it to be a 'defense-penetration' that applies only to her own attacks?