Rotation sees older sets leave the available pool of cards, and used to happen on a yearly basis
The story in Final Fantasy XV begins with Noctis and his entourage pushing a broken-down Regalia down a road on the way to Altissia, after King Regis bid an extremely cryptic farewell to Noctis
In total, 11 new Final Fantasy MTG cards can be a deck's commander, and they are: Garland, Royal Kidnapper The Destined Warrior The Destined White Mage The Destined Thief The Destined Black Mage Edea, Possessed Sorcerer Rinoa, Angel Wing Seifer, Balamb Rival Squall, Gunblade Duelist Amarant Coral Noctis, Heir Apparent Of these, the strongest is Noctis, Heir Apparent, and while the other cards do have their merits, the iconic FF15 character packs a big punch thanks to its ability to blink mid-combat and give benefits to other creatures that can achieve something similar
but in a way, it might be the most problematic, as its basically going to be a problem in any format you stick it in (even if people might not realize it)