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Dark Fusion X SPELL Fusion Summon 1 Fiend Fusion Monster from your Extra Deck, using monsters from your hand or field as material
You can get some pretty sweet, limited edition skins, though - for example, if you bought the 'Warhammer Bundle' during the October 2023 Warhammer 40k Secret Lair, you got two codes, each good for ten premium card sleeves showing the 40k-ified versions of classic cards: Merciless Executioner as "Ork Kommando" Aggravated Assault Krenko, Tin Street Kingpin as "Makari the Lucky Grot" Zurgo Helmsmasher as "Ghazghkull, Prophet of the Waaagh!" Blind Obedience Danitha Capashen, Paragon as "Neave Blacktalon" Najeela, the Blade-Blossom as "Archaeon the Everchosen" Scourge of the Throne as "Stardrake" Beware, though - this is often the priciest way to find new codes
This started with Weezing from Genetic Apex and reached its peak during the Celestial Guardians set, where Nihilego and Naganadel took the forefront
For me, its the best Pikachu ex across the last two eras, and its popularity seems to suggest others agree