ThatDude343 said:
This idea that Bell Cozy is somehow an equal for Base Alicorn Twilight is absolutely insane.
1. Twilight never got a chance to fight Cozy in the throne room alone. Celestia gives her a futile warning in which she retorts with a magic blast that Twilight's half dome shrugs off. Immediately after putting up the shield, she then goes against the idea of Celestia and Luna enganging. This is heavily implied to be because Twilight knows this is some form of trap (either that or they already had a plan in place). Before Tirek and Chrysalis forcefully entered the palace, Cozy was surrounded by a base mane 6 with Twilight about to cast a spell, she looked absolutely defeated in this position.
2. Cozy knows she couldn't beat Celestia and Luna, must less actually win in a fair fight, which is why she had the bell with her the entire time. Cozy has gotten this far because of her manipulative nature and her asympathetic deduction. She still gets what she wants through words. If controlling Discord's magic wasn't retconned in the series finale, Cozy would have been the strongest character in the entire series.
3. Prior to the bell, Cozy had been a Pegasus for all of her life. The point? The same reason why Flurry Heart isn't considered a top tier: Experience. A filly who just got a portion of extremely powerful ancient magic isn't going to be able to defeat a gifted unicorn/alicorn who had been studying magic her entire life.
The idea that a final villain is weaker than the main character is absolutely insane. Twilight even said, "Keep telling yourself that!" when Cozy mentioned the heroes just using raw power, implying that they could only beat Cozy because they used teamwork and distractions. Also, the Mane 6 did seem to get a huge power boost in the finale, so that's not really a solid argument.
Also, being weaker than Celestia and Luna doesn't mean she's weaker than Twilight alone. Like, what?
Also, Flurry Heart is very different from Cozy Glow. Flurry has literally one feat when in an enraged state, while Cozy actually has a consistent level of magic that's given to her by the bell. It's not about experience. We're talking about raw power, which is all from the bell. She doesn't get less magic because she has less experience. She's less skillful than Twilight for sure, but Cozy is at least on the same level.