Their standard attack isn't great, though their charge bonus is. When they get into melee combat, have them go to their secondary weapons (shift-rightclick). Their maces are armour-piercing.
Bear in mind, they are a specialized unit, and must be handled as such. They are not designed (in the game) to fight as would Macedonian or Legionary Cavalry. Their survivability is very good, and when they slam into an enemy...For kicks, watch them fight wardogs.
I am soon going to put them against screeching women in a custom battle. I will DVR the moment of impact. Buwahaha!
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