PR♥ISM-Promise, Princess Labrador

(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. []:[Choose a face down card named "PR♥ISM-Promise, Princess Labrador" from your G zone, and turn it face up] If you have a heart card with "PR♥ISM" in its card name, choose two of your rear-guards, until end of turn, they get +5000, and "[]:At the end of the battle that this unit attacked or boosted ([Boost]), at the end of that battle, you may return this unit to your hand.".