World of Warcraft®

You restore 20% of your total health after you kill a target in Demon Form that yields experience or honor.

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.

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

If you use Demonic Leap while falling, you slam into the ground rapidly and will not die from falling damage.

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

Your Carrion Swarm no longer knocks targets back.