Holy Divine Knight, Gancelot Peace Saver

-Stride Step-[Choose one or more cards with the sum of their grades being 3 or greater from your hand, and discard them] this card on your from face down. :When this unit attacks, if you have a heart card with "Alfred" or "Blaster" in its card name, 1, and until end of that battle, this unit gets drive +1, then, if you have a face up card in your G zone, this unit gets +1. G zone:During your turn, if this card is face up, all of your rear-guards with "Blaster Blade" in their card names get ":Resist".