A Tactics staple. Defender of Rammas gives you an awesome 4 defense for 2 resources, with minimal wasted points in other areas. His 1 hit point makes him vulnerable to treacheries and direct damage, so consider bringing along Gondorian Discipline, Honour Guard, or loading him up with some attachments (Raiment of War?) Take care of these guys and they can nullify 20+ points of damage over the course of a game, easy.