Dragritter of Flame Blade, Grhy

:If your soul has a "Child Dragon, Aundra", when you would ride "Unison Dragon, Aundra" from the ride deck, you can ride without discarding a card from hand. :At the beginning of your battle phase, if you have a grade 3 or greater vanguard with "Grhy" in its card name, [ this unit], choose one of your rear-guards with "Aundra" in its card name, and until end of turn, that unit can attack from the back row, and gets +10000.