Bone Prison

Bone Prison reduces your active Cooldowns by 0.5 seconds for each enemy trapped, up to 5 seconds.

Casting Bone Prison generates 50 Essence. Trapping a Boss generates an additional 25 Essence.

You gain 198 Thorns for each enemy trapped by Bone Prison. When a segment of Bone Prison is destroyed or expires, it deals 100% of your Thorns around itself.

Bone Prison becomes a Darkness Skill. Bone Prison forms a Corpse every second and spawns a pool of Desecrated Ground, dealing 300% Corrupting damage.

Bone Prison becomes a Blood Skill, casting the prison around you. While standing within it your Essence Generation and Cast Speed are increased by 20%, but it drains 5% of your Maximum Life every second.

Bone Prison makes enemies Vulnerable for 8 seconds.

Bone Prison grants 1 stack of Resolve for each enemy trapped.