When this card is Ritual Summoned you can banish seven "Mark" cards from your Hand or GY with different names
Forget anything you know about black rogue payoffs if youre running Me, the Immortal
Behind him, Zan Syed had the full four in his sideboard in a very similar deck
C Common Metal Reflect Slime X TRAP Continuous Special Summon this card in Defense Position as an Effect Monster (Aqua/WATER/Level 10/ATK 0/DEF 3000) (this card is also still a Trap)
The blurb next to the cards say that the EARTH one allows you to discard a Pendulum Monster to destroy a monster, the WATER one allows you to discard a Pendulum Monster to destroys a Spell/Trap, and the WIND one allows you to add Odd-Eyes and Magician to your hand (no idea from where)
Even if you're not invested in Wizards of the Coast's long-running card game Magic: The Gathering, there's a good chance that you, the discerning Eurogamer reader, have heard that there's a Final Fantasy crossover set which launches today