Danger! Chupacabra! [MP19-EN138] Prismatic Secret Rare

You can reveal this card in your hand; your opponent randomly chooses 1 card from your entire hand, then you discard the chosen card. Then, if the discarded card was not "Danger! Chupacabra!", Special Summon 1 "Danger! Chupacabra!" from your hand, and if you do, draw 1 card. If this card is discarded: You can target 1 "Danger!" monster in your GY, except "Danger! Chupacabra!"; Special Summon it. You can only use this effect of "Danger! Chupacabra!" once per turn.