Stride
(Release it when both you and your opponent have a grade 3 or greater vanguard!)-Stride step-[Choose one or more cards with the sum of their grades being 3 or greater from your hand, and discard it] Stride this face down card on your (VC).
[AUTO](VC): When this unit's attack hits a vanguard, choose one of your opponent's rear-guards, and retire it.