The Uruk-hai Captain that is your General increases its Attacks and Wounds to 3 each.
Friendly Isengard Assault Ballistae may re-roll To Hit and Scatter Rolls of a 1. Additionally, when a friendly Demolition Charge is detonated, you may roll two dice on the Detonation Table rather than one and pick either result.
The Break Point for an Assault Upon Helm's Deep Army is 66% rather than 50%.
