She is a card you want to keep in play for a couple of turns and so doesn't suit Sneak Attack style things quite so well however she is better than a lot of the things you can cheat in should she be dealt with right away
We also run powerful support cards to close out games like Chandra's Incinerator turning all ping damage into creature removal, Laelia, the Blade Reforged growing into an enormous threat with Ob's exile draw, turning Ob into a 1-shotter with Temur Battle Rage, and protecting him from removal with tons of cards like Armor of Shadows
From a mechanical point of view, the Final Fantasy set also brought back a trick first employed in Kamigawa: Neon Dynasty and later refined in March of the Machine : transforming double-faced cards that are a saga on one side and a different permanent type on the other
Keep things friendly
It complements other recent expansions effectively and fits naturally alongside landmark sets featuring ex, VSTAR or special-illustration card mechanics
Mono-White also gets to play Luminarch Aspirant, which is a slow but powerful card