In Dark Phoenix!, Jean Grey’s immense telepathic and telekinetic powers spiral beyond control, transforming her into the all-powerful Dark Phoenix. The X-Men face their most terrifying internal threat yet as Jean’s humanity collapses under the weight of cosmic power. Her devastating new persona defeats her teammates effortlessly and decimates the Hellfire Club, leaving nothing but ruin in her wake. This issue marks the moment where Jean transcends mortality and becomes a galactic-level being — an event that changes mutant history forever.