Genesis Dragon, Excelics Messiah: DZ Booster Set 06: Generation Dragenesis

(This card cannot be in your main deck)[Stride]-Stride Step-[COST][Discard a grade 3 card with Messiah in its card name from hand], 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)[Generation Break 2]:When this unit attacks, [COST][Counter-Blast 1], choose any number of any player's locked cards, and unlock them. If you unlocked a card, choose the same number of your rear-guards as the number of cards unlocked by this ability, [Stand] them, and until the end of turn, all of your front row units get [Power] +10000, and this unit gets [Critical] +1.