Main objective: get souls for Hakkar the Soulflayer. When getting (x) ammount of souls Enemy team and units get Corrupted Blood. Does (x) amount of damage over time and transmits by just touching other objects (this can transfer to structures not including the core). Cannot be transmitted to other team. Souls are continued to he gathered even when corrupted blood is out. Souls are offered immediately and not turned in for a chance for both sides to get corrupted blood at the same time.
Souls are gathered from killing both minions and heroes. Minions give 1 soul each while heroes give 3 (or more) each. Camps give 2 souls per mercenary.