["The unique passive ability possessed by Calypso–"Divine Sanguine"--is meant to make him nigh unbeatable when facing a large group of players. It allows Calypso to grow in strength with every kill, increasing his base level and health drastically, while also gaining an increased abundance of blood to manipulate from each kill.
That's why the best course of action is to take a smaller, more elite group to face Calypso, to prevent the Divine Sanguine from growing out of control. However, taken out of his natural abode and placed into a bustling city, this ability is taken to the next level."]
A tsunami of blood crashed down on a number of fleeing players, swallowing them whole and converting their lifeforce into further sustenance.
