Gruumsh

Gruumsh, He Who Never Sleeps, is the main deity of the Orc Pantheon.
He was nicknamed for he was said to never tire, and symbolized with an ever-open single eye to represent the orc belief that he watched over them all, judging the worth of each and every one of their kind.
Long ago he swore that orcs would rule the world, and since then had driven his people to wage endless holy war in the name of his divine wrath.