Rivendell is protected by a imposing fortress, that can be armed with healing fountains, towers and side gates at various building slots. The gate can on each side be upgraded with floodgates to blow nearby enemies away. The whole game principle of the faction is focused on the buildable library, which collects knowledge during the game. By doing so it is provided with new fields of study and Lore-Master. As the game progresses and more knowledge is collected the variety of the faction grows. Units can use new skills or formations and improve already upgraded blades and arrows even further.