from great heights, extreme temperatures, high caliber bullets, and massive impact forces like being repeatedly struck by the Hulk without sustaining injury. Due to his fully advanced musculature, Samson's muscles produce considerably less fatigue toxins during physical activity than a normal human, granting him unnatural stamina. He has demonstrated this to battle a mindless incarnation of the Hulk for more than six hours. The discovery of a new persona within Leonard's psyche, which he calls "Samson", (later referred to as "Dark Samson") reveals that this Samson has much stronger capabilities than previously observed. As an immortal, he can resurrect himself after dying by entering through the Green Door, with certain limitations. While in the body of Sasquatch, he have full access to his bestial abilities. Doc Samson is a skilled psychiatrist, theoretical technician, and inventor of various medical devices. He has often called on to counsel several superhumans, such as the members of X-Factor. His extensive mind also permits him to block out psionic attacks and manipulation. Samson is a formidable unarmed combatant, which he briefly held his own against the combined forces of Iron Man, Wonder Man, Sub-Mariner, and Hercules, after they have first battled the mindless Hulk. He sometimes uses psychology as a tool to get through a more powerful opponent's guard, including an Infinity Gem-empowered Titania. Personality Unlike the Hulk, Doc Samson originally did not suffer from dissociative identity disorder and retained his brilliant scientific mind. However, he eventually developed two alternate personalities: his calm conscious personality "Leonard" and his rude personality "Samson". He has been conducting research on gamma beings like himself and came to this conclusion that these mutations are largely determined by the subject's deepest sense of self. Hence, his form is based on a subconscious desire for superhuman power like the Biblical Samson. While attacking the Thunderbolts, a telepath named Mirage noted that Doc Samson, who was present in Thunderbolts Mountain, had some fascinating thoughts. In his mind she saw that, while these mental reactions to Norman Osborn and Moonstone were Hulk-like, he was still able to control himself from physically acting on those impulses. Other versions Earth X In Earth X, it is stated that Doc Samson was killed when the Skull used his powers of persuasion to force Samson to rip himself inside out. It is also said that Samson got halfway through before he died, and the Skull "thought it