Friendly Isengard models do not start to take Courage tests for being Broken until at least 66% of the force’s models have been removed as casualties.
Commander of the Uruk-hai
The Uruk-hai Captain chosen as your leader increases their Attacks and Wounds characteristics to 3 each.
The Isengard Hordes
Hero models from this force increase the number of models they can include in their warband by 6.
Break the Walls
Isengard Ballistae from this army list may re-roll results of a 1 for To Hit and Scatter rolls during the Shoot phase. Additionally, whenever a demolition charge from your army is detonated, you may roll two dice rather than one and pick either result.