Champions are the strongest unit in Conquest.Their movement is somewhat lacking, but they pack a punch, and few units can survive more than a hit from them. Though they must be wary of ranged units, if encountered toe-to-toe, it is likely the champion will come out on top. The one to watch is chastise, which with the lack of a protective command such as Stoicism or Shield Wall can leave a champion vulnerable to a Battle Cry by a knight or another champion.
Judging by the name, these are key players in championeer squads, which usually consist of three or four champions and a lot of scouts. Good commands to use with champions are Regenerate, Battle Cry, Bombard and Charge, but these are by no means the best way to lead a championeer squad - these are only suggestions.