Hitting an enemy with Blood Hex will Reveal them to your team for 2s.
Level 4
Overflowing Delights
Swarm
Increase the Radius of Swarm by 4%, but increase its cost by {scale=3|3}%.
Level 2
Enriched Blood
Swarm
Increase the damage and Healing of Swarm by 8%, but reduce its duration by {scale=0.35|0.35}s.
Level 2
Tainted Form
Weapon
Gain 3% of Max Health when hitting a marked enemy.
Level 3
Blood Cannon
Armor
Increase extra Blood Health by 800 while decreasing base Health by {scale=125|125}.
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%.