unchained cards yugioh Complete Custom Deck for Yu-Gi-Oh! Fiend/Effect Unchained Soul of Disaster (CHIM-EN010)

I have been looking for months for a single japanese cards that seems to be the hardest card of my collection to be found

Once per turn, during your End Phase: You can target 1 "Memento" Spell/Trap in your GY

320 HP with NO weaknesses and a cheap retreat cost means that this phantom flyer can swoop in safely (barring the most extreme circumstances) and easily go for a kill

Does Cost Reduction Work on X-Spells

If you had four copies of a card in your collection that had the same name and the same artwork, it was considered a "full reprint" and would only be opened in packs if you had already collected all other cards of that rarity in that set (same as if the card was banned in Constructed play)