japanese pokemon booster box 151 Scarlet & Violet (Shrink Wrapped) – Olympus Collectibles generation Pokémon with this special Korean Box Pokemon Card】151 (SV2a) Japanese Booster

From there they can be Special Summoned by a Virtual World card

Place 1 "Infernity" card from your Deck on top of your Deck

There are also other cards that can give more options to the Deck, such as: "Djinn of Rituals" monsters: if used for a Ritual Summon, they give that Ritual monster additional effects, such as immunity against Trap Cards, effects that target it, or even preventing the opponent from Special Summoning (Traditional only)

Cardcar D YS17-EN016 YuGiOh Starter Deck: Link Strike Keep track of your collection value over time

Ive been using this method for years

You can only activate this effect of "Unending Nightmare" once per Chain