Why is the Prodigious canonically more powerful than the Miraculouses? Like Nooroo full on says: "It is for good reason that the Prodigious was abandoned in favor of the Miraculous! It was secured in that cave because it is too powerful, too dangerous!" and I just... don't see it?
Like don't get me wrong, being able to transform into animals is an awesome power, but how is it more powerful and more dangerous than the Miraculouses? The Peacock alone can create animals to fight and many other beings, we've seen the Butterfly give the power of shapeshifting to one not even using a Miraculous, and the elemental powers one gets in dragon form is the same as the Dragon Miraculous. And all of this is not considering the many other powers the canon Miraculouses can do, and who knows what the other Miraculouses not seen in the show can do as well!
Then to actually use the Prodigious you have to possess the value each Renling has to even transform! With the Miraculouses anyone with any intent or any values can transform and use the powers by just knowing the right words, words they can order the kwami to tell them with no resistance! Kwamis are forced to the whims of their holders with just a few words, while the Prodigious gets a whole powerful guardian to protect it and deem who is worthy to wield it? Why don't the Miraculouses get that level of protection?
Then finally with the Miraculouses we have the Wish with Tikki and Plagg's Miraculouses. You're telling me the ability to completely destroy the universe and recreate it at one's own whims is less powerful than shapeshifting? That the shapeshifting powers are the ones that needed to be sealed away in the cave but literal universe-ending powers didn't?














