Rainbow Neos (MGED-EN137) - Maximum Gold: El Dorado 1st Edition

"Elemental HERO Neos" + 1 "Ultimate Crystal" monster
Must be Fusion Summoned with the above Fusion Material Monsters and cannot be Special Summoned by other ways. Once per turn: You can activate 1 of these effects. • Send 1 monster you control to the GY; shuffle all monsters your opponent controls into the Deck. • Send 1 Spell/Trap Card you control to the GY; shuffle all Spell and Trap Cards your opponent controls into the Deck. • Send 1 card from the top of your Deck to the GY; shuffle all cards in your opponent's GY into the Deck.