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 from face down.
:[Counter Blast (1) & Put three cards from the top of your deck into your drop zone] If you have a heart card with "Cocytus" in its card name, choose up to one card from your drop zone, call it to . Then, if you call a unit with "Cocytus" in its card name with this effect, choose a grade 1 or less card from your drop zone, call it , and that unit gets +4000 until end of turn.