Argon

Argon ('''Jonathan Kessler') is a fictional supervillain appearing on Marvel Comics' ', being created on TBD.

Backstory
Jonathan Kessler was an ordinary scientist studying many things but the biggest thing he wanted to study was noble gases he was really fascinated with all that stuff so he insisted on taking his classmates to a field trip to a nuclear power plant. There, it suddenly collapsed, killing most TBD.