Interdimensional Dragon, Faterider Dragon (EXRRR) (DZ-BT06/EX02EN) [Generation Dragenesis]

(This card cannot be in your main deck) [Stride]-Stride Step-[COST][Choose one or more cards from hand with the sum of their grades being 3 or greater, and discard them], and [Stride] this card on your (VC) from face down. (When you stride, your original vanguard becomes a heart card, and this unit gets that card's [Power] and card name. At the end of the turn, return this unit face up) [AUTO](VC):When this unit attacks, [COST][Counter-Blast 1 & turn a card from G zone face up & put a rear-guard on the bottom of the deck], search your deck for up to one unit card with grade +1 of the card put on the bottom of your deck for this cost, call it to (RC), and shuffle your deck. Choose one of your units, and it gets [Power] +5000 until end of turn for each face up card in your G zone.