Chronodragon Nextage

-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. :[ 1 & Choose a face down card named "Chronodragon Nextage" from your G zone, and turn it face up & Choose three cards from your hand, and discard them] At the end of the battle that this unit attacked a vanguard, if you have a heart card with "Chronojet Dragon" in its card name, you may pay the cost. If you do, put this unit into your G zone face up, choose one of your vanguards, and it.