These quality control issues with Final Fantasy arent the first of their kind for MTG by a long shot
Zacama, Primal Calamity As a 9/9 for nine mana, Zacama is definitely expensive to cast
The problem is that Yorion Jeskai Lukka is not actually reliant on its namesake card, and other decks warping themselves to simply account for Lukka is unlikely to force the deck out of the metagame

Reparations (Card) Reparations 0.05%inclusion 1.19K decks 2.17M decks Black Bolt, Inhuman King 6.3%inclusion 5 decks 79 decks King T'Challa 0.4%inclusion 5 decks 1.31K decks Willie Lumpkin, Postman 0.3%inclusion 2 decks 745 decks Shang-Chi and the Ten Rings 0.3%inclusion 1 decks 326 decks Thanos, the Mad Titan 0.0%inclusion 1 decks 2.12K decks Top Commanders Ishai, Ojutai Dragonspeaker // Kraum, Ludevic's Opus 8.8%inclusion 49 decks 558 decks Zur the Enchanter 0.3%inclusion 43 decks 16.3K decks Grand Arbiter Augustin IV 0.3%inclusion 40 decks 13.4K decks The Council of Four 0.7%inclusion 34 decks 4.96K decks Aminatou, Veil Piercer 0.2%inclusion 33 decks 17.1K decks Queza, Augur of Agonies 0.3%inclusion 26 decks 9.14K decks Y'shtola, Night's Blessed 0.1%inclusion 25 decks 48.3K decks Aragorn, the Uniter 0.1%inclusion 23 decks 22.1K decks Ms
There doesn't have to be a responsible one
The Dragon type has a long, unique history in the TCG, at one point being entirely colorless