Divine Dragon Knight, Mustafa (G-BT03/S05EN) [Sovereign Star Dragon]

Stride (Released when both players' vanguards are grade 3 or greater!) -Stride Step-[Choose one or more cards with the sum of their grades being 3 or greater from your hand, and discard them] Stride this card on your (VC) from face down. [ACT](VC)[1/Turn]:[Counter Blast (1) & Choose a face down card from your G zone, and turn it face up] Choose one of your opponent's rear-guards, retire it, choose one of your units for each face up card named "Divine Dragon Knight, Mustafa" in your G zone, and until end of turn, they get "[AUTO](VC/RC):When this unit's attack hits a vanguard, choose a card from your damage zone, and turn it face up.".