Increase the damage and Healing of Swarm by 12%, but reduce its duration by {scale=0.35|0.35}s.
Level 3
Symbiotic Relationship
Swarm
Increase the Healing allies receive from Swarm by 4%, but increase its cost by {scale=4|4}%.
Level 1
Unholy Flight
Death Wings
Reduce your damage taken by 5% for 1.5s after activating Death Wings.
Level 1
Sanguine Pact
Death Wings
Reduce the Cooldown of Blood Hex by 2.5s after activating Death Wings.
Level 5
Overflowing Delights
Swarm
Increase the Radius of Swarm by 10%, but increase its cost by {scale=3|3}%.
Level 5
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%.