Increase your ally's Movement Speed by 12% while they are marked by Blood Hex.
Level 3
Sanguine Pact
Death Wings
Reduce the Cooldown of Blood Hex by 1s after activating Death Wings.
Level 2
Enriched Blood
Swarm
Increase the damage and Healing of Swarm by 16%, but reduce its duration by {scale=0.35|0.35}s.
Level 4
Symbiotic Relationship
Swarm
Increase the Healing allies receive from Swarm by 20%, but increase its cost by {scale=4|4}%.
Level 5
Waning Moon
Blood Hex
Reduce the Blood cost of Swarm by 5% while an ally is marked by Blood Hex.
Level 1
Maelstrom of Carnage
Swarm
Swarm is now cast on yourself and follows you around instead of being placed on the ground, its ability cost is decreased by 25%, and its radius is increased by 30%.