Detonate Volt Dragon

[ACT](RC):If you have a grade 3 or greater vanguard with "Grhy" in its card name, [COST][retire this unit], choose one of your vanguards, and it gets "[CONT](VC):During the battle your unit with "Aundra" in its card name attacks, your opponent cannot play blitz orders from hand, and when they would call cards from hand to (GC), they must call two or more at the same time." until end of turn.