Biggest change for the universe, Kwamis and their Miraculous
I really love the idea of each miraculous having its own jewel, concept, weapons and everything that surrounds its universe, but lately I've seen a lot of ideas that have inspired me, and I must thank @gee-arid (who will also be credited in another post) for the idea of weapons varying by carrier, @kari-go for the power pearls and @arcadeology for the Tamagotchi idea.
Initially, the main idea was to keep the whole system already established and change the powers, weapons and appearance of the kwamis and miraculous as much as possible, but I feel that if I'm going to work with the expansion of the miraculous universe and the idea of prototypes before the miraculous (since a prodigious is a prototype, and I'll take that into account, as well as prodigious not being the only one to exist in this au), I've decided to organize all the "failures" chronologically until I get to the miraculous.
Prodigious was the first attempt to create magical objects, and in a way it was a semi-success, since they managed to communicate with the magical creatures, but they got the beings wrong, because instead of the Kwamis, they got the Reinlings, and only those who wore the activated prodigious could see them, as well as not receiving any power, only being able to summon weapons with a design similar to the renlings, as well as needing to be feeling the same emotion concept as the being.
Dreamous (Dream + ous) was the second attempt, this time they didn't try to put in too many beings at once, but they were looking for powers, and well… they succeeded, but again it wasn't the Kwamis, it was the Wisoums, beings of light that are representations of desires and aspirations, giving powers by adapting to the user's aspirations, the only problem was that they are faithful until death, that is, a system of registration imposed unintentionally,
After many attempts, with varying results, they managed to artificially create all the characteristics they liked from their previous experiments, and so with the Miracore device, the Miraculous were created, containers for the Kwamis, creatures who themselves have powers, as well as being able to evolve their powers with a certain amount of experience and share their connections with other beings (kwagatama). But Miracore allows these powers to be shared with the holders, as well as creating weapons, a security system, adaptability and shape-shifting. And even though it's something completely artificial, they were helped by Tikki (Kwami of creation), Xuppu (kwami of experimentation) and Longg (Kwami of mystification), so an agreement was created between the humans and kwamis, promising to help each other and not use these powers for evil. For this reason, many Kwamis are easygoing towards humans, while others like Pollen, Orikko and Stompp are not very friendly towards many humans.
Enigmous and Termous were attempts three and four, trying to correct the mistakes of the previous versions, they managed to bring in the Changs, beings who are representations of challenges and problems, they brought an alternative to the adversities of the environments (the blessed potions), and the Fearbers, who are personifications of fears, bringing variation in attributes according to the bearer's fear. However, neither of these were "safe", as they were visible to anyone who had the same fear/problem, as well as gradually corrupting users in the long term.
Obs: Enigmous and Termous have powers, but they are very diluted due to their transformation, as well as being able to change shape. Any more information than that is a spoiler, sorry.