I figured Agatha was being punished for making a pact with a higher power. I am still leaning towards Blackheart as a Mephisto proxie.
- Nitpick: There was also Agatha joking “Seriously why are you yelling we’re standing right here.”
And wiping the tiniest of tears away. But that may have been more touching then funny.
My memory of Winter Soldier and Civil War was that they were pretty unrelentingly serious, but I may be remembering them as being more grim than they actually were. Tony’s grief over his mom’s death was a plot point in that last, and Endgame briefly touched on the grief and survivor’s guilt of the survivors of the Snap, but they didn’t really delve into that too deeply. I think this may be the most personal thing the MCU has done so far.
Let’s assume though that the crowns speak to being “the office holder” - queen of that power. Something that I’ve been led to believe has comics origins.
So Wanda of Chaos Magic. Agatha’s mum of … Order Magic? … now dead and office passed on to? Not Agnes.
Does Dottie as Abigail Harkness come in here? Or all trolling?
I’m guessing Agatha’s purple magic indicates that she’s practicing a third school - Dark Magic, maybe? - and so was ineligible for her mother’s crown.
Possibly that coven represented all the practioners of that form of magic, who are now extinct thanks to Agatha? That doesn’t seem as fun, though.
The whole airport battle in Civil War was a big joke until Rhodey got shot down.
He did say, “Snoopers gotta snoop.” Maybe he is freed from Agatha’s control, and is snooping to find out what’s going on himself.
On Wanda’s accent. I think this is insignificant. It’s just a story telling device to indicate when Wanda is fully immersed in her sit-com fantasy versus when reality is intruding and she’s speaking as IRL Wanda. It means she’s breaking her own fourth wall.
No accent, sit-com Wanda. Accent, real world Wanda. Yeah, she’s annoyed when people intrude on her fantasy, but the pissed off native accent returning is just happenstance.
There’s also Kamer-Taj green magic. I don’t know if the MCU will go all in on the flavors of magic idea and I don’t know that these styles of magic are truly different. In fact, they may downplay magic altogether and leave it as infinity stone stuff instead.
It could just be the different colored lightsabers from Star Wars.
She didn’t have the accent in the last couple movies her character was in, so it’s not just “sit-com/real life.” I think it might just be, “Her accent comes out when she’s really pissed,” though.
On the “colors of magic” thing, the fact that the title for someone who is really good at Chaos magic has a color in it makes me suspect it’s significant, at least for Chaos magic.
If you’re referring to the magic wielded by the Ancient One, Doctor Strange, etc., in the MCU, their magic effects are a sort of yellowish-orange, though when Strange uses the Time Stone, that has a green effect.
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One more thought. Assuming that Agatha’s “OMG you’re the Scarlett Witch” moment is authentic and not based on some phony myth, this seems like the MCU trying to retcon all the confusing inconsistency around the Scarlet Witch from the comics.
Avenger’s Wanda may or may not have been a minor talent before she was unlocked by the Mind Stone. The Mind Stone turned her into a powerful superhero, but she’s basically still not “magic”. She has energy blasts and telekinesis and telepathy, but she doesn’t really conjure. She doesn’t really change reality.
Then, in her grief, she unlocked some new level of power. Or the big bad helped her tap into something dark. And this dark, dangerous version of Wanda is the Scarlett Witch. Which in the MCU becomes a villain. Basically the Dark Phoenix storyline.
The Ancient One explains that magic is essentially drawing on energy from different dimensions. I assume all the orangish magic comes from one dimension. When Kaecilius down magic from the dark dimension is a reddish-purple color.
Ah, you’re right. Forgot that the green was specifically the time stone. Their orange magic is still a new coding from the 3 we’ve seen in this series. Not sure if the green Agamotto magic is “magic” or infinity stone power. Probably a meaningless distinction.
It looks an awful lot like “chaos” magic here.
I also recall that his weapons seemed to be drawn from the mirror dimension. At least that’s what they looked like.
Eh, there’s only so many colors vs. an infinite number of dimensions.
“Wait – was that sorcerer using aquamarine or turquoise magic?”
“What? I thought it was cyan! Maybe he was one of those Teal Magic guys?”
A very popular school of magic in the early '90s, as I recall. 
So, here’s something. Assuming that the color coding of magic is significant:
The Mind Stone is yellow. Wanda’s powers are red. This suggests that the Mind Stone isn’t the source of Wanda’s powers, it just boosted powers she already had.
But in Infinity War, it’s stated that Wanda can destroy the Mind Stone because her powers come from the same source.
Did she will an Infinity Stone out of existence just because she thought she could?
This is why no skilled magician is ever caught without his Pantone color wheel. Second most important tool next to those rings that open magic portals.