Progenitor Dragon of Deep Sea, Balanerena (BCS2019/VGP06) [Bushiroad Event Cards]

[Stride]-Stride Step-COST [Discard a card with the same card name as a card on your (VC)], Stride this card on your (VC) from face down. [CONT](G Zone):This card cannot be turned face up by abilities. If this card is face up, you can Stride without paying the Stride cost. [AUTO](VC):When your opponent's guardian is placed, COST [discard a grade 1 or less card from your hand], and retire that guardian.