Hello. I don't know if yоu agree with me, but the class spam abilities of the necromancer need to do something.
1) Poisonous skull - it is difficult to spam with a ranged skill, inserting a light attack into rotation using duals or a greatsword, why not replace the poisonous skull by analogy with the crystal weapon of the sork. Firstly, this will make the gameplay difference between necro mana and stamm, and secondly, this type of spam ability is conveniently used by any weapon. In the third, add a poison effect to it, a necromancer class with a bonus to damage over time in which there is only 1 class DoT in the stamina.
2) Ruinous Scythe - This skill is definitely the worst of the weapon abilities. If the poisonous breath of the DК, thanks to Major Breach and the low cost, is still competitively capable, then the scythe cannot boast of this, all the tanks I know use the mana morph, and I hardly see the stamina morph. Either reduce the cost, or add to it executioner effect.