Twin Demon Dragon, Zahhak

<Darkness Dragon World> [CONT](RC)/(GC):If you have a grade 3 or greater vanguard with "Kyoya" in its card name, this unit gets [Power]+5000/[Shield]+5000. (Active on opponent's turn too) [AUTO]:When this unit is placed on (RC), if your order zone has a "Dragon Ein", [COST][Soul-Blast 1], look at the top seven cards of your deck, choose up to one card with "Aqulta Gwaneff" or "Azi Dahaka" in its card name from among them, reveal it and put it into hand, and shuffle the deck.