So like Arianna Dumbledore is an Obsurus, right? I mean it would totally make sense. In Deathly Hallows Aberforth describes Arianna’s powers “turning inward” and “exploding out of her” after the muggle boys attacked her. It would also make sense as to why Grindlewald knows so much about them, as he would have witnesses first hand the power of an Obsurus while he a Dumbledore were friends.
Ugh this is such a good movie to make us think like this again! I feel like a kid again, wondering what will happen next!!!