Didn’t we have a conversation about a non-button-mashing build months ago…
My Necromancer…
…still has the same build on her as I suggested back then. It relies on getting initial stacks of Bone Armour, which kills lesser enemies and gives you mitigation, but all you need to do is press that a couple of times at the start of a rift / GR and once you have the stacks just refresh it once a minute. Killing ability is Siphon Blood, on the mouse. Most of the other abilities, such as curses, are runed to be auras, i.e. don’t need to be cast.
This build is easily capable of GR70+ especially in Season 22 where you can add a 4th Cube slot, which could be another scythe with a damage multiplier, or a Flavour of Time.
Also, I notice your Necromancer is using the Jesseth’s set (scythe + shield) but you don’t have Command Skeletons in your abilities, so that’s a bad choice of weapons as the point of that set is to pair it with Command Skeletons so the Necro’s own abilities do 400% more damage. No skeletons = no 400% bonus.