X-Factor v04 - Heart of Ice (2008)

Collects X-Factor (2005-2013) #18-24.
With mutants an endangered species, can X-Factor stop the Isolationist from making them extinct? X-Factor's battle with the depowered mutants of the terrorist X-Cell reaches a cataclysmic conclusion. Will X-Factor's Rictor remain loyal to his teammates when faced with the chance to regain his own lost powers?