As long as shes exerted (which, with her lore value of two, will be a lot), any of your opponents challenging characters will have their strength reduced by three
In addition to Stitch and Angel, all of Stitchs cousins and characters from Lilo & Stitch: The Series are joining in
She can help you find your Floodborn characters and shift targets when you need them, and thanks to her high Willpower, she is difficult to remove - especially if she finds her way to Rapunzel's Tower
With great artwork and flavor text on the original Urzas Saga printing, its no surprise that its a sought-after card that anchors a strong archetype in the ultra-powerful Legacy format that allows you to cheat massive threats into play way ahead of schedule
Chocobo Kick Bite spells like this are how green gets access to removal, and its not bad at doing that
Marcy: Ah, Ishgard