One of many pieces to make voltron ally strategy shine. Especially good in Star-Lord deck, but also in other realiable on Guardian cards.
This is interesting, that basic card (Sidearm) is usually better for ally (avoid retaliate than overkill). However when ally got 3 or more attack, this card can be game changer.
Rate (A-C) B- This is upgrade likeof the worst upgrades on ally, Only to consider on making big ally.