Penance
Monet St. Croix
One of the most powerful and arrogant mutants alive, Monet possesses superhuman strength, flight, telepathy, invulnerability, and genius-level intellect (a combination she never lets anyone forget). A founding member of Generation X, Monet's haughty exterior conceals the trauma of being trapped by her brother Emplate in the mute, razor-skinned form of Penance.
Generation X #1
1994
Generation X #1
November 1994
Penance remains one of Generation X's most memorable and tragic figures, with her razor-sharp diamond skin and self-destructive guilt making her a standout from the original Peter David run. The Monet St. Croix/Penance body-swap mystery was a defining storyline for the character, and her later appearances in Peter David's X-Factor run gave her meaningful development beyond the tortured victim role. She's beloved for her visual distinctiveness and emotional depth, though underutilized in recent years compared to her Generation X heyday.