Holy heck, where to begin!
Okay, the narrator reveal! Perfect choice! I didn't even think it could be spoilers:end of spoilers I didn't even consider her a possibility because a) I have no clue on whether she was dead/resurrected/not-dead or whatever and b) why would she be involved in Vision's miniseries instead of Wanda if she was still alive or not.
Agatha Harkness!
But my gawd, that dark sarcasm and black humor up till now? Yup, totally her, feels like I should've guessed her now!
I loved the whole Sandman/Neil Gaimanesque approach to showing her witchcraft methods as well. Starts off with 'whuh' and then you get to the end of her whole process and you go 'ooooooh'.
I liked that Tony makes an appearance because up till now, I had this impression Vision was going through his...thing...in a little bubble, and that somehow either everyone else didn't know what was going on, or they deliberately didn't want to be involved with it (can you blame them). But there he was, helping out his friend, though I would be really intrigued if in the main Avengers series, or maybe in Invincible Iron Man, Tony talks about what was going through his head witnessing everything that was happening. He does say it's all 'normal', but feels like he just wants to help cover for Vision a bit to everyone else?
Also was spoilers:end of spoilers
Agatha's precognition vision kinda meta? I mean, hm, the X-men, and Fantastic Four (plus the Avengers granted) all dead/going to die because Vision does a thing? And the fact Vision's address is 616 whatever-street? Plot-relevant and snarky comment on Marvel's treatment of those first two properties uh?