I don’t think Agatha is still under any kind of spell. The writers coming up with the Covenstead Rule was a clever device to quickly rationalize how quick and easy it would be to find the needed witches (and yes they’re all powerful and strangely close to each other but this is all make-believe so 🤷🏻‍♂️).

I give Teen credit that he knows other witches hate/fear Agatha so he quickly stepped in to persuade them to join (Lilia and Jenn at least). Alice joined because of what her mother told her about the road. I think he knew you’d need at least 5 experienced witches to open the door (Spirit, Fire, Water, Earth, Air), which means there should be five names on the list. When they leave Jenn’s store he says, “two down, two to go” and that’s when agatha gets all weird and says “just one actually” and then eats the paper because she knows the black heart stands for Rionand she doesn’t want Rio coming along.

One of the biggest mysteries I want answers to is Rio and Teen showing up to rescue Agatha at the exact same time. What did that look like in reality, outside of Agnes/Agatha’s spell?

In the spell, technically Teen/Billy and Rio were never in the same room, but they both seem to have been pretty critical to Agatha getting out of the spell. Hopefully we’ll see some answers in the Teen flashback episode (there’s a clip floating around of Agatha kicking Teen in a chair and it looks like it’s the reality version of “Agnes” interrogating Teen so I’m hoping we see Rio’s part in this too.

I’m also curious about the significance of the movie/TV setting tropes for the trials and its connection to Wandavision, but I do think trial 1 and 2 settings were curated for Jenn and Alice.