In the endgame we will gain access to more legendary powers that takes this build to a whole new level. A very important note here is that the Blighted Corpse Explosion deals damage twice per second helping us generate an insane amount of corpses via Hewed Flesh, which is how we sustain the build. We can easily regain our Essence at the same time as we are dealing respectable damage using Corpse Explosion, making the Bone Spear Necromancer a very consistent and reliable build. Bone Spear Necromancer is one of the smoothest builds to level a Necromancer with It performs just as well in the endgame content by providing high critical hits with Bone Spear in combination with an insane amount of corpses being generated.