Yeah Lord of Terror is gained from BattleDread, which results from him personally killing a certain amount of enemies in a battle. There are some good ones like: 'the unstoppable' (for siegeattacker)
'the invincible'
'the conquerer'
'the bastion'
etc. and also silly ones like 'the attacker' and 'the defender' and a la Arnold, 'the infantryman'.