Once again, going off artwork, game design, and knowledge of mechanics alone, Im hoping Emet is an Orzhov or Mardu creature with the ability to bring allies back from the graveyard or banish allies and then play them

Facilier Charlatan (2X) Flotsam Ursalas Spy (1X) Jafar Wicked Sorcerer (2X) Jetsam Ursalas Spy (2X) Magic Broom Bucket Brigade (3X) Maleficent Sorceress (2X) Mickey Mouse Wayward Sorcerer (Foil 1X) Olaf Friendly Snowman (3X) Pascal Rapunzels Companion (2X) Rafiki Mysterious Sage (3X) Sven Official Ice Deliverer (1X) The Wardrobe Belles Confidant (3X) Yzma Alchemist (2X) Friends on the Other Side (3X) Disney Lorcana The First Chapter, Sapphire & Steel Starter Deck Contents: Sapphire Cards Aurora Briar Rose (3X) Aurora Dreaming Guardian (Foil 1X) Aurora Regal Princess (3X) Flounder Voice of Reason (2X) Gramma Tala Storyteller (2X) Jasmine Disguised (2X) Maleficent Sinister Visitor (3X) Maleficent Uninvited (1X) Mickey Mouse Detective (1X) Mufasa King of the Pride Lands (2X) Scar Mastermind (1X) Develop Your Brain (3X) One Jump Ahead (2X) Coconut Basket (3X) Magic Golden Flower (2X) Steel Cards Beast Hardheaded (2X) Captain Hook Forceful Duelist (3X) Goons Maleficents Underlings (2X) Hercules True Hero (2X) Kristoff Official Ice Master (2X) Maui Demigod (1X) Prince Eric Dashing and Brave (2X) Simba Returned King (Foil 1X) Simba Rightful Heir (2X) Fire the Cannons

It seems to be showing up in some of the so-called Ruby Storm lists lately (the name coming from the Modern deck)
This is basically Skyswimmer Koi
This is a full-on control deck, and has the control spells to show for it
Now, based on what Magicite you equip to Terra (or any FF6 character), she can learn resurrection spells