True. But Ornassion doesn't seem like the type of guy that would sacrifice his own troops just to ensure his survival. He probably would be too proud to do so. Imagine him standing surrounded by thousands of enemy corpses, but this moment of glory is ruined when she remembers that he had to drain the life of his soldiers in order to emerge victorious. Like his character sheet says: Unlike other dreadlords, Ornasion had always prefered brute force over manipulations or mind games. So I would say that doing this could also count. One day, still centuries before the Void War, Ornasion made his move. He challenged all higher-ranking dreadlords of the Blooddrinker Legion at once - and tore them apart This accomplishment would be nullified if it had the additional "He managed to did this by using his own soldiers to replenish himself whenever the tables turned against him".