Absolute skills

The Orcish Stronghold is really powerful. 500 units of rage + 150-200 from the ability and building = second level of rage from the start, all creatures (except wyverns) become terrifying beasts that don't take much damage, and it's hard to get rid of that effect. Plus, the path to the 3rd level of rage is not far, and if a creature reaches the 3rd level of rage, then it's game over for everyone (without the Stronghold ability, the 3rd level is rarely achieved). The skills for the Stronghold are acceptable, except perhaps for the catapult, which is not always needed.