Rerebrace
Medieval History
A rerebrace is a piece of armour designed to protect the upper arms (above the elbow). Splint rerebraces were a feature of Byzantine armour in the Early Medieval period. The rerebrace seems to have re-emerged in England, in the early 14th century. As part of the full plate armour of the Late Middle Ages and Renaissance the rerebrace was a tubular piece of armour between the shoulder defences (pauldron) and the elbow protection (couter).
In Belegarth
Class 1: Blue Armor confers one additional hit to the Target Area covered by the Armor, so a single hit from a blue weapon 'breaks' the armor, and an additional hit kills the Target Area underneath.
Class 2: Red Since armor only provides one additional hit to the covered area, this allows class 2 weapons to functionally ignore armor.
Class 3: Green A two-handed strike from a green weapon causes two hits of damage against a Target Area, ignoring any Armor the Target Area may have. A one-handed strike causes no injury to an Armored Target Area.
Class 4: Yellow Class 4 (missile) Weapons cause two hits of Injury to a Target Area, this allows class 4 weapons to functionally ignore armor.
Class 5: White Since the only legal target zone for these weapons is the head, it does not provide any benefit aside from protection from personal injury.