Which champion is known as the 'Mad Chemist'?

Which champion is known as the “Mad Chemist”? Singed. The League of Legends champion is an amoral alchemist whose experiments and poisonous inventions define both his story and his gameplay.

Singed comes from Zaun, the polluted undercity beneath Piltover, and is portrayed as a brilliant but deeply unethical scientist. He sells his expertise to whoever can pay and treats suffering, chemical transformation, and battlefield destruction as opportunities for experimentation. His lore connects him to some of Runeterra’s most dangerous conflicts and scientists.

His signature ability, Poison Trail, leaves a damaging chemical cloud behind him as he moves. This creates a distinctive playstyle: Singed often lures opponents into chasing him, then turns their pursuit into a disadvantage. His Fling ability can throw enemies over his shoulder, while Insanity Potion enhances his combat capabilities.

The title is sometimes confused with Singed’s “Mad Scientist” skin, but “the Mad Chemist” is the champion’s established title. Singed is also distinct from champions such as Twitch or Dr. Mundo, who use poison or experimentation themes without holding this official identity.