The Ram Riders are a very cool unit, however there are some issues. They seem to die incredibly easily in prolonged melee, and they move ridiculously fast. Additionally, the complete lack of a scout hero means that Iron Hills are much weaker early game, especially against enemies with strong scout heroes like Isengard, Rohan and Gondor. To counteract this, either the single scout rider should be made stronger and cheaper, so that all 3 together are equivalent to a scout hero, or a scout hero should be added alongside the rams.