Black Seraph, Gavrail

-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. :[ 1 & Choose a face down card named "Black Seraph, Gavrail" from your G zone, and turn it face up] Until end of turn, this unit gets ":When your card is put into your damage zone during the battle phase, choose up to two of your units, and they get +2000 until end of turn." and "Rescue 2‐:At the end of the battle that this unit attacked, choose two cards from your damage zone, heal them, choose one of your vanguards, and deal two damage.".