He is one of the mutants who escaped Mr. Clean’s massacre of the mutants in the London sewers.
Creation
Burning Puddle was created by Joe Casey and Ian Churchill in 2001 and first appeared in Uncanny X-Men 395.
History
Burning Puddle was one of the London based Morlocks, a community of mutants who lived in the sewers. The community was being hunted down by Mr. Clean, an agent of the Church of Humanity, who was genetically engineered to murder mutants.
Powers
Burning Puddle has the ability to secrete acid