Interdimensional Dragon, Lost Age Dragon (PR/0152EN) [Promo Cards]

(This card cannot be in your main deck) [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 (VC) from face down. (When this card Strides, it gains the power and name from one heart. At the end of the turn, return it face up.) [AUTO](VC):When this unit's attack hits a vanguard, choose one of your opponent's rear-guards, and your opponent puts that unit on the bottom of his or her deck.