Joshua, Phoenix's Dominant [Borderless Surge Foil] #542 (Magic Final Fantasy | Magic Cards) prices are based on the historic sales
The White, Blue, and Black (or Esper) deck for Final Fantasy is built around Y'shtola, Night's Blessed, who incentivises you to cast multiple noncreature spells with mana value 3 or greater in a single turn to drain your opponents and draw cards along the way
Minus the Zantetsuken, as that's a Final Fantasy original and, despite all of his pursuit of knowledge, Odin likely didn't name his signature move in Japanese
Eden, Seat of the Sanctum Having a land that does something later in the game is a useful tool to mitigate flood, so I doubt Eden, Seat of the Sanctum is utterly unplayable
The topic of how to balance out the 16 different Final Fantasy games came up a few times during the discussion, with the developers making it clear that they tried their best to balance each game, though this was a difficult task