Interdimensional Beast, Metallica Phoenix

(This card cannot be in your main deck) (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. (When this card strides, it gains the power and card name of one heart. At the end of the turn, return it face up) Time Leap-:[Choose a face down card from your G zone, and turn it face up] When this unit attacks a vanguard, if you have a heart card with "Chronojet" in its card name, you may pay the cost. If you do, choose up to one of your rear-guards, and time leap it. (Bind it, call a grade +1 card from your deck, and shuffle your deck. At the end of the turn, put the called unit on the bottom of your deck, and call the bound card)