Destruction Tyrant, Gyangchuraptor

-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. :When your rear-guard is placed from hand, you may put three cards from your drop zone face down as equip gauge for that unit. :When it attacks, [ 1 & turn a card from your G zone face up], all of your rear-guards with three or more equip gauge, choose the same number of your opponent's rear-guards, and retire them.