Necromancer Drain Life Wraiths Build
https://www.youtube.com/watch?v=u78uw_7mNa0&feature=youtu.be
Drain Life is a skill rarely used because channeled. Players don't like it. But the Dark Shackles node allows you to no longer have to channel.
Obviously, Leech Life Drain an incredible amount of Health. Ideally, Leech Life should be played on a build without Ward, and with a high level of Health. But I don't have the equipment to do it at all.
It does too a huge quantity of damages to groups of monsters, and its cooldown is very small (0.8 seconds). The problem is that this spell consumes an astronomical amount of mana.
The solution is to leech mana on many Minions. We can do it with skeletons, but the Wraiths are much more numerous and faster.
The passive skill Empty the Graves of the Necromancer increases our defensive power.
Note that Drain Life has a spell damage effectiness of 300%, which is huge. You should have a high level of Adaptive Damages.
I would have liked to use more Minions, but the hardware performances are too low to make it possible comfortably.