[ 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): When your rear-guard with "Blue Wave" in its card name attacks, that unit gets [Power]+3000 until end of that battle. [ACT](VC)[1/Turn]: [Soul Blast (1)-card with "Blue Wave" in its card name] Look at seven cards from the top of your deck, search for up to one grade 3 card with "Blue Wave" in its card name from among them, place it on your (VC) as a heart, and shuffle your deck. If you placed one or more cards, put all of your heart cards other than the card placed due to this effect into your drop zone.