A mutant , Sage possesses a number of mental abilities .
A mutant , Sage was originally presented as the personal assistant to the Hellfire Club 's Sebastian Shaw , but an extended retcon revealed that she was one of the first mutants discovered by Professor Xavier .
A mutant , Sage possesses a number of mental abilities and was originally presented as the personal assistant to the Hellfire Club 's Sebastian Shaw , but an extended retcon revealed that she was one of the first mutants discovered by Professor Xavier .