If you somehow exile a noncreature card with Assimilation Aegis's first ability (possibly because it was a copy of a creature while on the battlefield), you can't choose to have the creature Assimilation Aegis is attached to become a copy of that card when Assimilation Aegis's second ability resolves
With several options for increasing Strength, making it easier than ever to pull this off, alongside the ability to give other characters support and a four in Willpower to last longer than a single turn in most cases, she can be a great setup for the Fabled meta
"You've already got a card that's this cool Pokmon - this fire-breathing dragon - and it has nice art and it's holographic
On top of that, there's five extra Sword & Shield booster packs in there too, so you can build your deck with a mix of new and classic cards
Allowing your creatures to deal damage off toughness rather than power is great with defenders and other creatures with large butts, like Giant Ox