She doesn't have any additional abilities
To triple a creature's power, that creature gets +X/+Y, where X is twice that creature's power and Y is twice that creature's toughness when Tifa's Limit Break resolves
While he's part of the main set, not the Commander precons, I don't see Zell Dincht being a Standard-playable card
Healing, strength buffs, and some nice Locations will help you pull this off
Dont get me wrong, Balthier and Fran is quite strong, but there are so few vehicles in Final Fantasy that you can play in a red/green deck that this just feels incredibly out of place
Though this card is great regardless of which character you use it with, Gruesome and Grim feels custom-made for the various amethyst Merlin cards found in the Rise of the Floodborn set