Ulik

Ulik is a member of the race of Rock Trolls and lives within caverns called the Realm Below in the extra-dimensional realm of Asgard.

History
He comes to Earth using the Asgardian weapon called Codgel. Ulik travels to Midgard and using the powerful weapon he battles Thor and the Avengers in New York. The team take him down but in the process they lose the weapon, which ends up in the hands of Doctor Doom. Ulik is taken back to Avengers Tower where he is held in a cell.