Orcs – discussion about the race.

I also wanted to add that free Cyclops are strictly forbidden against Necromancers, because under their control, they can easily wipe out half of your army. Bloodeyes will also cause some trouble, but they definitely won't be able to attack with more than 2 stacks at a time. In general, control, and dark magic in general, is a terrible weapon against Orcs. (They have no way to remove enchantments, as Night Nazgul already mentioned).