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I do however think that any version of this effect is powerful and will always find a home

Once per turn, during your Standby Phase: You can return 1 Rank 9 or lower Dragon Xyz Monster from your GY to the Extra Deck, then you can Special Summon that monster from your Extra Deck, by using this card you control as material (this is treated as an Xyz Summon, transfer this card's materials)

Armageddon Knight X DARK Level 4 [ Warrior / Effect ] ATK 1400 DEF 1200 When this card is Summoned: You can send 1 DARK monster from your Deck to the GY

In most Special Summons in Yu-Gi-Oh!, the cards used as tributes find their way to the graveyard upon being used as materials