World of Warcraft®

You receive 100% more healing from using a healthstone, but the health is restored over 10 sec.

Teaches you the ability Imp Swarm.
Requires Demonology.

Imp Swarm
Summons 5 Wild Imps from the Twisting Nether to attack the target.

The Wild Imps passive effect is disabled while Imp Swarm is on cooldown. Imp Swarm's cooldown is reduced by spell haste. Also increases Wild Imp's cooldown by 4 sec.

Improves your demon's special abilities:

Your Imp's Firebolt cast time is reduced by 50% and fires in bursts of three.

Increases your Voidwalker's total armor by 10%.

Your Succubus's Seduction ability also removes all damage over time effects from the target.

When your Felhunter uses Devour Magic, you will also be healed for that amount.

Increases your Felguard's total health by 20%.

Your Eye of Kilrogg is no longer stealthed and can now place your Demonic Circle. The casting Warlock must be within line of sight of the Eye of Kilrogg to place the Demonic Circle.

In addition, the movement speed of your Eye of Kilrogg is increased by 50% and allows it to fly in areas where flying mounts are enabled.

Your Felguard will equip a random two-handed axe, sword or polearm from your backpack.

Your Felsteed and Dreadsteed can cross water while running and leave a trail of flames.