Ichikawa highlighted the four-year development period of the Magic and Final Fantasy collaboration, during which both teams poured all our love and attention into it, believing in the best possible future
This could only happen if your deck don't have a lot of Lands and Sagas, which means you didn't build around Eivor at all
Minor spoilers for New Vegas I suppose
Below is a rough guide to help you gauge which of your cards will be legal to play in the Standard format
As a Machine Xyz-oriented Deck that can utilize "Rank-Up-Magic Argent Chaos Force", the archetype's playstyle is also supported with "Marshalling Field", though this card is too slow for their current FTK-oriented playstyle
Balmor, Battlemage Captain, Stormchase Mage, and Sprite Dragon all get larger as more spells are cast, turning these tiny threats into potentially game-ending creatures