This is probably the best bet for leveling up, but its pretty useless once you get to 60. While leveling, I usually just left my Imp as a battery, and when I needed mana, I just sucked it right out of him. This is great when you're in a tough situation and can't life-tap to get mana.

seen alot of warlocks get this and i will soon as soon as i hit 40. this is very great ability, especially right when you get revived or dont want to drain your own hp for mana. in groups you will be using the imp most of the time, and he has 1k+ mana, basically adding that to your own mana pool, with super fast regen outside combat. but this is not a soloing tool. for soloing you will still be using lifetap, because your void needs the mana to taunt, and time it takes him to regen, you can also regen.(this ability makes it very easy to recover from a revive, when you summon your new pet, its always at 100% hp/mana. Dark pact... Dark Pact... Dark Pact, now your 100% too, fast!)

You take 150 mana (lvl 1) from your pet and get you get 150 mana back (100%). It's a great spell cause its instant and you really never run out of mana. Works good with the felhunter.

Where is this spell?