After Kraven the Hunter's botched resurrection at the hands of his wife and children, he and his daughter Ana Kravinoff hunted and killed the other members of their family - Vladimir, Alyosha, and Sasha Kravinoff. Following this, Sergei attempted to break the curse of immortality placed on him by his botched resurrection, though this proved unsuccessful.
Dissatisfied with only having a daughter to carry on his legacy, Sergei travelled to Wundagore Mountain and forced the High Evolutionary to create 87 clone "sons" - Ana leaving him in disgust and outrage when she learned what he was doing. Dismissing his daughter as worthless, Sergei took his 87 sons to the Savage Land and trained them in the ways of the hunt until he deemed them ready, sending them out into the world with the task of proving themselves worthy of his legacy. Deeming his brethren to be weak and unworthy, one of the Sons of Kraven hunted and killed each of his 86 "brothers" before returning to the Savage Land and giving their skulls to Kraven, who was overcome with pride at his Last Son's ruthlessness and named him his heir. Kraven sent the Last Son to subdue Spider-Man as part of an elaborate plan to goad his longtime enemy into killing him and breaking his curse of immortality.
As Kraven and his Last Son watched the Hunter robots battle the assembled animal-themed supervillains and heroes, the Son was confused as to why he and Kraven weren't hunting them themselves and was angered when Kraven refused to do so.[5] Dismissing his "father" as a pathetic shadow of his former self, the Last Son set out to join the hunt, attacking and defeating the Lizard.
Upon seeing that Curt Connors had suppressed the Lizard, the Last Son dismissed him as being just as pathetic as Kraven, promising to kill the Lizard's son Billy right in front of him. The Last Son attempted to kill Black Cat and Billy but was driven off by the Lizard. Returning to Kraven's manor and finding Spider-Man, the Last Son brutally pummeled him before strangling him to death, only to remove his mask and discover he had just killed his own "father".
After attending his father's funeral, The Last Son went on a rampage within the estate destroying stuffed trophies that his father had accumulated over the years. As he pulled himself together, The Last Son found a letter written to him by his father which was hidden behind Kraven's rifle on the wall. It stated that the Last Son was to finally inherit his legacy not as Kraven's son but as the man himself since being a clone. He told him that he was him and he shall now be known as Sergei Kravinoff, aka Kraven the Hunter.
Current Version:
Kraven the Hunter
Former Version:
Last Son of Kraven