Blue Wave Marshal Dragon, Tetra-boil Dragon (G-BT13/Re:03EN) [Ultimate 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. [AUTO](VC) Generation Break 2 :[Counter Blast (1) & Choose a face down card named "Blue Wave Marshal Dragon, Tetra-boil Dragon" from your G zone, and turn it face up] When this unit attacks a vanguard, if you have a heart card with "Blue Wave" in its card name, you may pay the cost. If you do, until end of turn, this unit gets drive-1, and "[AUTO](VC) Wave-4th time only (Active during the specified battles of each turn) :[Choose a card from your hand, and discard it] At the end of the battle that your rear-guard attacked a vanguard, you may pay the cost. If you do, [Stand] this unit.".