Fast as hell (no pun intended) but mainly an aura horse. Necronomicon is stupidly strong if you aim getting it to level 3 as quickly as possible. You can dive 2 people at level 11 and kill them both with the fire power it gives you in those 2 little hellspawn. The synergy Necronomicon has with the rest of his kit is obvious and even though there was a nerf in how scorched earth interacts with the summons they are still sped up and get regen which is the important thing when it comes to diving.