Use: Permanently teaches you this glyph. 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.
Sell Price: 1
Notes
The imps are not controlled by the warlock. They generally will attack whatever the warlock is attacking.
The problem is that the imps have a tendency to pursue their targets to extreme distances, and there is no way to call it back. This could result in aggro problems.
There is no cap on the number of imps summoned.
Patch changes
Patch 5.3.0 (20-May-2013): Will now chain cast spells with no delay between casts, allowing them to cast their spells more frequently in the same amount of time.
Patch 5.2.0 (5-Mar-2013): Wild Imp's Firebolt now deals 15% more damage.