Yearner of Extinction, Azi Dahaka

<Darkness Dragon World> [CONT]:This card cannot be ridden. [Call Cost][Pay two gauges & retire a rear-guard] [AUTO](RC):When this unit is retired during your opponent's turn or your damage check reveals a card during your opponent's turn, if your (VC) does not have an Item, search your deck or drop for up to one card with "Aqulta Gwaneff" in its card name, and arm it to your vanguard. If you searched the deck, shuffle the deck. [Double Attack] - [AUTO]Back Row Center (RC)[1/Turn]:At the end of the battle this unit attacked, if your grade 3 or greater vanguard is [Stand], [COST][Counter-Blast 1], and [Stand] this unit. [AUTO]Back Row Center(RC)[1/Turn]:When this unit [Stand] by this unit's effect, this unit gets [Power]+10000 until end of turn. If your opponent's vanguard is grade 3 or greater, it also gets [Critical]+1.