The Woodheart Shield's design is almost completely oriented towards negating the advantages of tension-based ranged weapons such as bows and crossbows. A single skilled Banneret could take up a whole volley of arrows, charge at the archers and massacre them with impunity.
EFFECT:
Against all ranged attacks, this shield provides +1 ARM.
Note that attacks from firearms practically cancel out this bonus due to Gunshatter.