Gruumsh ia greater deity and god of war. He is the creator of the orcs and is revered by most of his kin.
Gruumsh is often called One-Eye and is always depicted accordingly. It is widely accepted that he lost this eye in battle with his nemesis, Corellon. However, the orcs maintain that Gruumsh is a cyclops and insist he never possessed more than one eye. As a result of this discrepancy, artistic renditions of his face vary substantially.
Gruumsh is also believed to be responsible for the recent death of Corellon Larethian.