Polymorph [Ninth Edition] Reptile but loses 500 DEF during

but loses 500 DEF during each player's Standby Phase

then you can add 1 "Indiora Doom Volt the Cubic Emperor" from your Deck to your hand

(Return it only if it survived combat

then Special Summon from your Extra Deck

attach that monster from the Graveyard to that Xyz Monster as an Xyz Material

Polymorph [Ninth Edition] Reptile but loses 500 DEF duringSet: Ninth Edition Type: Sorcery Rarity: Rare Cost: {3}{U} Destroy target creature. It can't be regenerated. Its controller reveals cards from the top of their library until they reveal a creature card. The player puts that card onto the battlefield, then shuffles all other cards revealed this way into their library.