What characteristic is shared by Deadpool and Taskmaster? 
Taskmaster (comics): Taskmaster (Tony Masters) is a fictional supervillain, and sometimes an antihero, who appears in American comic books published by Marvel Comics. Deadpool:  Initially Deadpool was depicted as a supervillain when he made his first appearance in "The New Mutants" and later in issues of "X-Force", but later evolved into his more recognizable antiheroic persona.
i don't know