I just wanna yap real quick.. if you read this i just wanna say actually thank you.. this lore took actually years to do, and it's continuing even! Some stuff is shortened out but it's also still kinda long too
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Earthspark Fractured Sparks Lore was... actually accidently made. Fractured Sparks was supposed to be my own universe just called " Tranformers: Fractured Sparks " and it existed for years before it got an actual proper name, but then one day I just felt like mixing it with Earthspark when It came out like in late season 1 episodes and now I got... whatever this is now. The ultimate lore. Combining both already existing lore + my lore and OCs and some characters that aren't originally in Earthspark but in Fractured Sparks, such as the many so listed characters I have and the other way around.
How I had it originally it, it had a slightly deeper dive into Megatron's backstory and lore which I kept for most part, including Unicron and a few others such as Optimus, Starscream, Shockwave.. but now I'm just very focused to finish Unicron's part and how he got an connected with Megatron, besides the Dark Energon thing.
Another interesting part which isn't in Earthspark Fractured Sparks yet.. is:
Thronos. He was a thing too, an another Titan actually created by Primus himself. He was actually bigger than Primus and Unicron too, and since I mentioned that planet eater maniac, He didn't like him much to be honest, especially because he was bigger and more... powerful. Thronos looked like an... Biblically accurate angel to say the least. He was like an guardian, of some sort. But his actions for what he was like for such an powerful and 'good' thing, He actually disappointed Primus dearly, proving he isn't worthy. But instead of Primus getting 'rid' of him or 'executing' him.. he did a different thing. Three things actually; He took his ability to see, talk and hear. Despite having that many eyes/optics, he was blinded in every single one of them. Just living in complete darkness and silence the rest of his life. The only thing is that he can do is sense the presence of others, and know how many are there.
He can change himself to be smaller, but even if he was smaller he still looked intimidating with all that wings and rings with eyes/optics just spinning around his helm non stop. They also occasionally spin slower or faster, depending how he feels. Those rings also hid/covered his face, and there was six of them originally, but two were actually torn off by Unicron leaving just four, and leaving A small gap where they were originally just enough to see his mouth.
How he looks, he was mainly a light-ish blue color with a bit of darker blue on a shoulder pad and legs and around his waist a bit. He has 6 wings, the four main big ones were mostly the same light blue while the other 2 two, slightly smaller ones were the light blue with hints of white.
He also had a one singular optict/eye at like his abdomen or near above there with a star under it.
The light blue he had was like a light diamond blue and the white as a diamond white, while the darker blue was like a dark diamond blue color...
Specifically like these
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And here is a little more stuff with Unicron..
Considering the fact how something happened which takes a much longer take to the story, I can just say he is not exactly in his clear mind, to say the least. The past for him just.. doesn't exist- he doesn’t remember it. Like that just got erased from his memory by like only Primus knows what and it's like messing with his head that he had broken his horns off (but they did grow back/healed, the second one not completely tho.) In fact his wings too but just SOME parts of them which never grew back/healed. And also, he can't exactly be an titan too. He's still tall/big but not as much like a Titan. We could say he's now just around 40+ feet tall / meters tall for the physical form he doesn't use much.
Megatron's body was.. actually more than capable of being able to handle the power.. considering the fact how he handled Dark Energon as well. He could handle Unicron just fine too, even if it was kinda weird to get used to. We could say that Unicron lives in his head rent free, able to take over controls any time he wants to bur most of the time he just... doesn't? But also he just talks A LOT, that sometimes it annoys Megatron but he has to listen and can't do anything not to listen... because you know. Unicron is his head. He can't escape that.
We could say for that when he is out, he doesn't do much either. He doesn't even touch the ground. He just floats/hovers 99% of the time. The 1% is when he has to sit somewhere normally or just stand there. Another thing is that he has like limited area access too with his size because he's still tall and the fact he can only be in the same are as Megatron most of the time.
My friend once made a joke with how big Unicron is now, he could be Megatron's new personal bed or something. And he's just awfully warm since he isn't in space anymore but he isn't that much warm either and my friend noted something like 'he is also Megatron's personal space heater too I see' so.. yeah. Sure? We can have that?? Mind you, Megatron is cold most the times (his body) because of the Dark Energon. For Unicron why it isn't like that it's just different because it's his own blood.
Also a random thing is that Unicron has a bitch resting face most of the time. No emotion at all, no thoughts behind those optics. He'd just observe and wouldn't do much. He also just... sleeps most of the time, because what can he do? There isn't something he can do much, besides the fact of just existing there. There are also very rare times where you might hear him purr actually?
He's also just... very damn sassy and cold. Always has snarky replies about anything said to him from others expect from stuff said by Megatron for... an odd reason?
Megatron could be the first being, or one of the very few, that Unicron has genuinely cared for in a paternal way. Their relationship is where Megatron is the only one who sees past Unicron's destructive nature and touches a more vulnerable side of him. Because well... he was not much different than that himself.
Unicron is billions of years old, and maybe he's just getting tired. And I mean like tired of living for so long like this in pure darkness and loneliness actually. He might be kinder to Megatron because he's a potential end to his own suffering. He sees in Megatron a key to his own freedom from the loneliness and the endless cycle of his existence.
Unicron might not understand how to expresstrue affection or emotions, so his gestures come across as cold or sassy often. He may offer Megatron knowledge and stuff just to keep him close and keep the dynamic they have and just talk to him. In this story, Unicron's biggest fear isn't being defeated, but being alone again.