Creation
King Crab was created by writer Jason Aaron and artist David Marquez, and first appeared in Avengers (2018) #9.
Major Story Arcs
King Crab first appeared as a member of Namor’s super-powered water-based team Defenders of the Deep. There he fought on behalf of Atlantean rights against the surface dwellers, and came into repeated conflict with The Avengers. After numerous failures, Namor was deemed unworthy of the throne of Atlantis, and was placed on trial for his misdeeds as ruler. King Crab is present at the trial, however a possessed She-Hulk interrupts and attacks the Defenders of the Deep.
Namor, resigned to his fate, submits himself to the surface world and is imprisoned. King Crab accompanies a hit squad made up of fellow DotD member Manowar and a group of Skarkan Atlanteans, who attempt to assassinate the Sub-Mariner. King Crab accuses Namor of betraying them by submitting to surface world punishment, however Namor silently responds by beating him to a pulp and throwing him from the prison back into the ocean.
Powers & Abilities
The exact measure of King Crab’s strength is unknown. He is shown grabbing Thor’s throat though Thor could speak (and even ply a quip), King Crab later had a fight with Ursa Major that was not very one-sided. It’s possible that while King Crab has some super strength, his defense may be greater than his offense as he survived a punch to the head from She-Hulk.