For arguably the past year I’ve been slowly cooking up a “power system” of my own, and seeing as how @gamehero14 asked about theirs, I think it’s safe to assume I can gather feedback about mine.
While I technically have 2 systems, one of them is still far more incomplete, and I’m trying to understand its nature and place in my world (which is a lot harder than I thought 
) though I think progress is going smoothly in that regard.
Now, anyway, let’s talk about the core, central mechanic in this world’s system.
We’ll codename it “Substance P” (this is not its actual name I’ve just called it that for confidential reasons)
Substance P is a bizarre, unexplainable liquid that does not behave like any form of matter observed previously. It’s not made out of atoms or particles known to humankind in any aspect, it doesn’t freeze or evaporate, and it’s unusually inert in most cases. Its true origins are a complete enigma, however, recent studies from scholars and scientists alike have concluded that most of the substance P found on Earth may have come from deposits inside of meteors that fell to Earth from the great beyond.
Now, Substance P in humans and most animals is generally harmless, while many companies and brands often put it inside energy drinks or other strange objects as a marketing strategy/health scam, it doesn’t do anything to benefit you, and is like water in that regard. Unrelated side fact: Substance P is heavier than water for reasons currently poorly understood.
Substance P, however, does become useful when consumed by a human or (very, very rarely) an animal that has an active ability, basically, a superpower.
To spare you all from the details, some organisms (primarily humans, though there’s exceptions) are able to use substance P in synergy with this world’s 2nd (and undercooked) power system to manifest bizarre abilities that at extremely high proficiency levels, cause the user to almost “shimmer like a gemstone with raw energy”, as described by many eyewitness accounts of the strongest users of substance P inside their bodies.
Now, I could ramble on about how substance P has a very notable and odd role inside of the rain cycle, and its strange interactions with electricity, but to save everyone from information overload, let’s move to the fun part.
the amalgams.
they have a slightly more creative name, I promise you.
You may have seen a few of these specimens in my art thread already, and if you’ve been making connections, it might be obvious as to what these are already.
the true nature, formation, and general biology of these creatures remains a subject of HUGE scientific controversy and discussion, absolutely nobody knows even how such beings came into existence, but here’s what we can deduce:
-amalgams always seem to appear in “bursts” or “waves” after a significantly powerful thunderstorm charged with substance P
-it’s not exactly understood how they form as laboratory recreations always result in failure (+wasted funds)
-these beings seem to come from once inanimate objects that were presumably soaked in the rainwater that was contaminated with varying amounts of substance P, it’s presumably the substance P causing the anomalous phenomenon to occur.
Amalgams themselves are sentient, usually sapient, and despite sounding like SCPs that would need military intervention, they often can be found fitting in relatively well into human society, and even rarely form businesses or syndicates, do note however that because of their free will and unusual origin, not every “amalgam” may be as friendly or amicable as others…
Anyway, that’s pretty much mostly what I have to say about my power system, or at least, half of it minus a few extra yap sessions, if you have any questions, feel free to share them, and at the very least provide me with some ideas of your own 
