Its particularly resonant considering FF10 s story: All Aeons are the result of a person sacrificing themselves to have their souls sealed into statues, thus transforming them into fayth whose dreams can physically manifest as summons
Once you do it becomes their burden to pay the upkeep cost on it
I can see it being used in Prowess mirrors to take out an opposing Stormwing Entity, or as part of an explosive flurry of spells to trigger prowess creatures, return Arclight Phoenix, or perhaps both
If your opponent has a bunch of creatures with unearth in the graveyard, you can ruin their reanimation plans by exiling everything, and creating two 2/2 bears isnt terrible in a pinch
When this Aura enters, if it's on the battlefield, it loses "enchant creature card in a graveyard" and gains "enchant creature put onto the battlefield with this Aura." Return enchanted creature card to the battlefield under your control and attach this Aura to it