Grants the Warlock's summoned demon Empowerment. Imp - Instantly heals the Imp for 30% of its total health. Voidwalker - Increases the Voidwalker's health by 20%, and its threat generated from spells and attacks by 20% for 20 sec. Succubus - Instantly vanishes, causing the Succubus to go into an improved Invisibility state. The vanish effect removes all stuns, snares and movement impairing effects from the Succubus. Felhunter - Dispels all magical effects from the Felhunter. Felguard - Instantly removes all stun, snare, fear, banish, or horror and movement impairing effects from your Felguard and makes your Felguard immune to them for 15 sec.