Great Emperor Dragon, Gaia Dynast (G-BT10/S05EN) [Raging Clash of the Blade Fangs]

[Stride]-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): Engorge [AUTO](VC) Generation Break 3 : When your rear-guard is retired by this unit, you may Counter Blast (1). If you do, call that card to (RC), that unit and this unit get [Power]+3000 until end of turn. [AUTO](VC): [Choose a face down card named "Great Emperor Dragon, Gaia Dynast" from your G zone, and turn it face up] When this unit becomes engorged, you may pay the cost. If you do, choose one of your rear-guards, retire all rear-guards in the same column as that unit, and Counter Charge (1).