Uncanny X-Men #454 (2005)

The X-Men conclude their two-fold battle against and at the side of the new Hellfire Club. Donald Pierce and his Cleaning Crew attack the X-Men, Roberto da Costa, Sage, and Sebastian Shaw. The X-Men successfully escape Pierce’s attack, and a mortally wounded Sebastian Shaw decapitates Pierce. Sage also reveals her duplicitous role in the formation of the new Hellfire Club. In Hong Kong, Rachel defeats Selene while Viper, Courtney Ross and Emma Frost upset the Hellfire Club’s mutant slave ring.