Created by writer Greg Pak and artist John Romita Jr., the earliest version of the character appeared in a cameo in an alternate history story in What If?
(2013–2015), and in live-action form in the Marvel Cinematic Universe television series She-Hulk: Attorney at Law (2022), in which he is played by Wil Deusner.
[8] When Greg Pak took over writing chores on The Incredible Hulk with issue #601, Skaar allied himself with a de-powered Bruce Banner.
[11] He was posthumously born via the Old Power after Sakaar was destroyed and Caiera killed, emerging from a cocoon on the planet's remains and rapidly aging into an adult.
He demonstrates himself to be a fierce and capable general, becoming the enemy of Axeman Bone and gaining the ability to harness the Old Power to manipulate the earth.
Because the planet possesses enough energy to satiate Galactus' hunger for 100,000 years, Caiera takes the Old Power from Skaar as she tries to reason with him.
After the Hulk engages Skaar, he effortlessly beats him but their fight creates a fissure that endangers a nuclear power plant.
Bruce offers to teach Skaar how to kill the Hulk should he ever return, but this is a ruse to allow Banner to monitor his "son", and impart fatherly wisdom in the hope of turning the savage warrior into a hero.
He then teleports to the country of Latveria, supposedly to transform in private but a battle breaks out between the Hulk and Latverian leader Doctor Doom.
Skaar soon intervenes with the aid of his father's teleportation technology as he wants to prevent Doom from robbing him of the ability to kill the Hulk.
Skaar concludes that his discovery of the teleporter and trip to Latveria are part of another of Banner's "lessons", and reiterates his desire to someday kill him in his Hulk form.
[23][24] Later in the story, Banner re-emerges as the Green Scar, prompting Skaar, who has finally been granted the confrontation he longs for, to attack him.
Skaar reacts to his father's compassion by ceasing his own assault and reverting to human form, but the Hulk continues fighting.
[25] Skaar then sets out on a journey with his father, sister, first cousin once removed Jennifer Walters, Rick Jones, and Betty Ross.
[27] When it is discovered that Brian Banner has been brought back from the dead and has become a Guilt Hulk/Devil Hulk hybrid, Skaar helps his father fight his grandfather.
Doc Green teleports Skaar to Paris along with a backpack full of money so he can start a new and better life under the alias "Santos".
[38] Skaar possesses superhuman abilities derived from his parents, the Hulk/Bruce Banner and Caiera, an alien native of the planet Sakaar.