World of Warcraft®

Your Corruption spell will heal you for 0.5% of your maximum health when dealing damage.

Your Soul Swap leaves your damage-over-time spells behind on the target you Soul Swapped from, but gives Soul Swap a 30 sec cooldown.

Requires Demonology.

Teaches you the ability Dark Apotheosis.

Dark Apotheosis
You imbue yourself with demonic energies, reducing physical damage taken by 13.85%, reduces magic damage taken by 15%, and allows the use of various demonic abilities.

In addition, Soulshatter becomes Provocation which taunts your target, Twilight Ward becomes Fury Ward which will absorb all schools of damage, Shadow Bolt becomes Demonic Slash, and Fear becomes Sleep.

Your soulwell glows with an eerie light.

Your Carrion Swarm no longer knocks targets back.

Your Soul Shards are transformed into Verdant Spheres.