Riot, please give Twitch the proper lore he deserves.
I'll say here and now that I've been a fan of him since...well. Since forever. Since the game was first playable with him in it. I've stuck by him as one of my only characters regularly played, followed, and am likely far too big a fan of a character that started out as 'a comedy relief sentient accident'.
For a very long time, that's all Twitch was. Comedy relief, with a side of a story that could've been great. Twitch was described to be almost monstrous, ugly, and filthy, yes; but along with that, he was the start of a unique and revolutionary process of 'birth' through a chemical mess created by the very people who were known to use chaos to create. Twitch was born of an entire city's years of hard work, labor, freedom, and creativity. He was the very thing that their work, technically, couldn't bear--a new life without sacrifice or reanimation.
Neither Piltover nor Zaun, nor any other part of the world, had created life in this way.
Well, now that's Zac's story. I'm fine with that.
That means Twitch needs to be something great. He WAS something great--he was supposed to be. You've given me very high hopes and confidence knowing that his 'hatred for humanity' was included canonically in his lore, now (skavens are well known to hate humans as well, however they really just hate every other species).
It's mostly my own theories and headcanon, but Twitch has to be completely hateful of everything related to humans now that he's been through hell and back, from humans treating his lower species like it's nothing, watching them die and reproduce over and over, to living in crud, to being a part of a city that teaches you to be chaotic. Learning that the world isn't fair on anyone. He's a child born into the world without even the simple knowledge newborns have within months of living; yet has to live as an adult, strife and all.
He deserves to be something that is not comedy relief.
I spoke about this to many others, but Twitch is, in reality, the #1 threat to Zaun itself. Yes, Mundo can possibly be dangerous, but he has no agenda but doing...well. Meme aside, 'as he pleases'. He doesn't care to specifically harm anyone unless he just so happens to. Viktor, we don't have too much information on him yet, but he doesn't seem to want to force any sort of large change on any large body of persons. Jinx likely wouldn't simply stop at Zaun specifically, but she seems to enjoy wreaking havoc elsewhere. Singed is likely the closest thing to a massive threat to Zaun aside from Twitch, and yet Singed...again, is simply following what most Zaunites themselves do. He's pushing limits, experimenting, and defying any gods that might exist with his work.
Twitch has the potential to threaten an entire city using plague rats, possibly causing the next, far more efficient and unavoidable Black Death, provided he manages to find the means to instill that kind of biochemical work into a rat's reproductive cycle. He could threaten OTHER cities over time. Camille, Piltovian officials and Warwick have every reason to come after Twitch for what he could be doing to threaten the chem-barons, or any other leaders in the city in order to gain the power needed to seize what he wants. Over time...he can start exterminating.
And of course, it could all be because the rat is alone in a world that hates him.
There are a RIDICULOUS amount of possibilities with this character and I don't want them to be missed. I almost had a panic attack when I realized Twitch was missing from Zaun's page, but now I'm actually glad you guys are putting work into him.
What I do hope is that 'Singed created him' isn't what you're going for, but alas...Singed seems to be at the heart of many things lately.
Regardless? I trust you. Make Twitch great. I know you can, Riot. Thank you.