Scales of War
Orcs are savage raiders and pillagers with stooped postures, low foreheads, and piggish faces with prominent lower canines that resemble tusks.
All Orcs can be aggressive being able to charge (run) and attack when they see a target.
Their leaders (known as War Chiefs) are always the strongest and most effective in combat. Expect them to be much (about 5 times) tougher that the ordinary Orc. They will generally be more vicious in a fight, and their war cry will cause the Orcs near them to increase in combat effectiveness as well.
Some Orcs (those who claim to have killed an elf, seen their one eye’d God, and removed one of their own eyes as a sacrifice) gain the title of “Eye of Gruumsh”. These orcs are the priests of the Orcs. They are able to enter a state of fury in combat, and can also cast spells of magic (clerical).
Some Orcs are blessed by the Orc Goddess Luthic with surprising strength and intelligence. These are called Orog. They are tougher and more ferocious in battle than the ordinary Orc. Don’t think that just because they are smarter, that they aren’t as violent as ordinary Orcs, they are just as much the detached killers (if not more so) as the others are.
— A briefing on Orcs by Hawkeye Half-Orcish last of the Rock Fist tribe.