Positive auras in most colors suck
Universes Beyond Final Fantasy marks the first time we have ever seen Saga Creatures in Magic
There aren't actually any rulings about how the player must perform the shuffle, meaning that they could theoretically conceal their shuffling completely and turn your opponent's blocking into a complete guessing game as opposed to trying to follow the shuffle around which might have been the intention of the card
If you want to min-max Aurelia, then this is likely where you want to be
But when it comes to actually owning the cards, there are only ten across all of Unglued and Unhinged that most established players want: Other than the gorgeous full-art basics in these sets, most established Magic players I know don't care about Un-sets
The Soul Stones harness ability is a bit overblown given the massive set-up cost, but it's all gravy on a massive upgrade to Charcoal Diamond, and an indication that the other colors will be getting some improved mana rocks soon enough, probably a few as early as Marvel Super Heroes next year