Ice Prison Hades Deity, Cocytus Negative

(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] this card on your from face down. :[ 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 a card from your drop zone, and call it to . Then, if the unit called with this effect has "Cocytus" in its card name, choose a grade 1 or less card from your drop zone, call it to , and that unit gets +4000 until end of turn.