Unending Nightmare [MACR-EN079] Secret Rare Psychic you can also look at

you can also look at your opponent's Extra Deck and banish up to 3 monsters from it with different names

draw cards equal to the number of monsters you sent to the GY +1

then you discard the chosen card

Set: Structure Deck: Machine Reactor Card type: Normal Spell Rarity: Super Rare While you control no monsters: Target 1 face-up card you control

With its increased power

Unending Nightmare [MACR-EN079] Secret Rare Psychic you can also look atSet: Maximum Crisis Card type: Continuous Trap Rarity: Secret Rare You can pay 1000 LP, then target 1 face up Spell Trap Card on the field; destroy it. You can only activate this effect of "Unending Nightmare" once per Chain.