Holy Dragon, Saint Blow Dragon (G-BT01/S01EN) [Generation Stride]

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):[Choose a face down card named "Holy Dragon, Saint Blow Dragon" from your G zone, and turn it face up] This unit gets [Power]+3000 for each of your rear-guards until end of turn. If the number of face up cards in your G zone is two or more, and the number of rear-guards you have is two or more, this unit gets [Critical]+1 until end of turn. This ability cannot be used for the rest of that turn.