Increase the Radius of Swarm by 6%, but increase its cost by {scale=3|3}%.
Level 3
Gloomy Nook
Armor
Gain a 300 Shield for 1.75s after falling to or below 75% Health. Can only happen once every 35s.
Level 2
Waning Moon
Blood Hex
Reduce the Blood cost of Swarm by 15% while an ally is marked by Blood Hex.
Level 3
Unholy Flight
Death Wings
Reduce your damage taken by 15% for 1.5s after activating Death Wings.
Level 3
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
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%.