But artifacts and theft decks overlap very well, especially if you focus on using your artifacts to power out big theft payoffs a Temur commander has access to, like Mind's Dilation, Etali, Primal Conqueror, and Blatant Thievery
Feed the Swarm
The eight MTG card types are: Sorceries Instants Lands Creatures Artifacts Enchantments Planeswalkers Battles Sorceries Sorceries (and also Instants) represent magical effects you can cast, like a fireball or a summoning spell
Putting a card like Elesh Norn, Grand Cenobite into your graveyard and then bringing it to play with a card like Reanimate or Animate Dead makes for a powerful one-two punch, especially early in the game
As a final note, I dont know anything about the Final Fantasy games myself, and I wont evaluate these cards based on how well they adapt characters, so I wont comment on the flavor at all