Phoenix

A reference-book introduction in 2006 launched this Marvel figure into the Modern Age, and Phoenix has since woven through some of the publisher's most compelling corners — from the mutant drama of Ultimate X-Men and Amazing X-Men to the boundary-crossing adventures of All-New Spider-Gwen: The Ghost-Spider. With heavy hitters like Captain Marvel, Wolverine, Psylocke, and Spider-Man sharing those pages, Phoenix clearly moves in elite company. Nine catalog appearances across two decades make this a character worth tracking down for the dedicated Marvel completist.