While Urzas Ruinous Blast is a staple of these kinds of decks, you could go as hard as playing Lavinia or OG Praetor Jin-Gitaxias, Core Augur if youre aiming your deck to play at hardcore tables
Outside of Standard, though, perhaps the competitive format most impacted by Final Fantasy is Duel Commander
Szarekh, the Silent King The problem with Szarekh, the Silent King is that needing to attack is a really slow trigger condition and one that you can only do once per turn
Frodo, Adventurous Hobbit + Sam, Loyal Attendant Another pair of partner commanders, Frodo, Adventurous Hobbit and Sam, Loyal Attendant work even better together than Merry and Pippin as perhaps the best Food commanders in Magic
Their Final Fantasy knowledge can help them build their first deck during a pre-release event, something that wouldn't have worked had Wizards of the Coast not made the effort to really solidify the set's flavor