Mr. Toxic

A shadowy figure who slithered into the Modern Age DC universe in 2012, Mr. Toxic made his debut in Detective Comics #10, brought to life by the creative team of Tony S. Daniel and Ed Benes. With only a handful of catalog appearances, he's a rare and intriguing presence — the kind of menacing newcomer who earns his place by sharing pages with heavy hitters like Batman, Bruce Wayne, Alfred Pennyworth, and Sergeant Harvey Bullock. For collectors who love unearthing the darker corners of Gotham's rogues' gallery, Mr. Toxic is exactly the kind of elusive early-2010s discovery worth tracking down.