[Tuna]

Missiles. All arrows, sling bullets etc have 70% of just not hitting anything when they usually would have. Couple that with a high-prot shielded unit, like the marignon knights, and a huge horde of your own crossbowmen, you can have a horde where a few of the knights stop the enemy and the crossbowmen do the damage on point blank (that is, place them right behind the knights very close to the frontline. This way, they very rarely miss, and dont daamge your own units.