Well, it's not quite the same but there's Plasmus- I don't know the backstory, or even his real name. But he has to stay asleep contained in a special chamber at all times, or he'll become a toxic, radioactive waste monster hellbent on eating more waste to grow stronger or break whatever's in his way... even though that's not what the human in him wants at all.

[ A tragic fate, honestly. What a nightmare that poor man's life must be. As she speaks she actually looks more upset- like she hadn't realized that bringing him up would make things sound so hellish. ]

And then one time some mold in someone's fridge attacked when the door was opened. [ She makes a face, here. What the shit, Titans? ] I woulda just tossed the whole fridge at that point, or like. Called a priest.

My world has a lot of strange things, even for us, though. Jump City was especially... vibrant however, due to the high population in metapowered teenagers. I don't know if the attack mold was because of magic, alien things or science things, but all three were good contenders.