On my old blog (deleted) I made a miraculous personification of Death, or more accurately of Souls since I feel like that's a more abstract concept that would fit with the kwami theme.
Yanna is the waters you were born from, and the waters you will someday return to. They share their consciousness with all living things, and when those things return to them, they gain all the lived experiences of each droplet.
I might bring them back for the comic, I don't know. 💧🌊🐬💀
Morii is a peaceful kwami, and though he likes to play around with the other kwamis, he is very chill about it. Morii is not emotionless, but he often underreacts to whatever is happening around him. He always keeps his cool even when facing a problem. Due to the nature of his power, Morii refuses to use his power or have a holder, and he would only lend his power if there are no other options left. Because of this, no one knows what could happen if Morii used his power without a holder.
Okay, so now it's time to talk about the kwamis' powers. I know I've already described them before, but now I want to talk more about how they work and how they can be used.
Morii - Wail
The user starts the attack by whispering into their tool, in this case, the megaphone. This charges the megaphone with energy. Once the megaphone is charged, it can be used as a gun in order to shoot an energy projectile towards a target.
Once the projectile is shot, it will travel at a fast speed in a straight line. It can't be deflected, but it can be blocked or evaded. Also the projectile won't stop until it hits something or someone.
The projectile doesn't have any effect on inanimate objects, it also has no effect on robots, no matter how advanced they might be.
If it hits an alive person, animal or plant, they will die immediately. The death will be instantaneous and, in the case of animals and humans, painless. It also doesn't leave any marks or signals of any kind on the corpses. Wail doesn't have any effect on Kwamis either.
The effects of this power cannot be reversed by any means, not even by the use of other miraculous powers, meaning that not even the Miraculous Ladybug cure can reverse death by this power.
Miraculous owners gain power with age, meaning they can maintain their transformations even after using their superpower and they can prolong the duration of it, and the number of times they can use it.
Morii's miraculous is special. It gives him control over the holder's transformation. Meaning that he is the only Kwami who can choose not to transform a user, and he can also control the powers granted to the user after transformation.
Morii only allows the holder to use their power once. Though they may maintain the transformation over five minutes, they can only use their power once per transformation.
Morii also refuses to use his power without a holder, so nobody really knows what would happen if he were to use his power like that.