Yugioh pro set storm

So I'm on DN playing random kids, I'm playing inzektor vs infernity, I have a bottomless f/d and a d-prison f/d with sangan in attack mode. He goes into a stardust, I chain bottomless so he would negate(and he did), so he set his last card in hand wit faceup mirage so i attack his mirage with sangan for 1k set heavy f/d and end. He gets stardust, draws he attacks with stardust into sangan i go d prison he says ok sets his last card in hand. I draw a card flip my set storm and he just said wow and quit haha amazing.