Grants both the Warlock and the summoned demon an effect as long as that demon is active.

Imp - Reduces threat caused by $23827s1%.

Voidwalker - Reduces physical damage taken by $23842s1%.

Succubus - Increases all damage caused by $23834s1%.

Felhunter - Increases all resistances by .6 per level.

Felguard - Increases all damage caused by $35704s1% and all resistances by .3 per level.