Increase the Healing allies receive from Swarm by 20%, but increase its cost by {scale=4|4}%.
Level 5
Sheer Ascent
Death Wings
Increase vertical movement of Death Wings by 10%.
Level 2
Tainted Form
Weapon
Gain 2% of Max Health when hitting a marked enemy.
Level 2
Waning Moon
Blood Hex
Reduce the Blood cost of Swarm by 10% while an ally is marked by Blood Hex.
Level 2
Convenient Leech
Swarm
Reduce the effect of Crowd Control for allies within Swarm by 20%.
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%.