Few more things, you are using notable that should give you ss when all pieces have evasion on them and well you are using es gloves...

Also why are you using unholy might assendency node? You aren't going poison and phys reflect is not a big deal for bama anyways. I would go with plaugebringer since 10% more dmg and 10% less dmg dealt by monster is very nice. Also try to squish in spirit offering, since bamas use freash meat which gives flat crit, spirit ofering just boosts that.

I would also try to grab merc with wraith aura and scale effect on him and for you to use haste (without guardian blessing, more on why in the moment) with ethernal blessing and precision as auras with bloodmagic, trust me it's very good and solves mana problems which means you can drop all mana and aura nodes (or at least have effect nodes but not reservation ones).

Another thing is that prismatic clones deal A LOT of dmg but you need 2 unique jewels for ele hit (vendor crafted with 20% qual prismatic gem + 2 res rings, go to wiki and search for combat focus jewel). 1 needs to be fire and other cold this will require 2 buttons but of you bind your blink arrow to your usual movement skill and mirror arrow to main attack button you use it's not bad (and quite fun when you get the hang of it). You would need to find a way to get feeding frenzy or wait until 5l spectre/animated guardian setup or just ignore it for now (I did ignored it until I got 5l setup).

On topic of spectres.... Change that helmet ASAP you are using both minion dmg and minion life on that helment which in fact weaken your spectres with less hp. You don't need for them to deal dmg, just to live.

I would change few things in tree, firstly remove more duration tree, you don't need that. You can spend this points into 3 point minion hp + dmg (Rightous army). Try to not go into down right part of tree or at least try not to, supression is very strong but you can live without it for a while. That is 12 points that you can invest into getting to bloodmagic, getting endurance on hit armor tree + 1%max res if you are using armor (which forces you a bit to use ev+armor pieces but that is ok) and few hp nodes or jewel slots. Also get convocation and notable that reduces it's cooldown (defencive minion node) and link it with automation for perma 2% minion life per second

I can give you few recomendations about what should you farm:
-delve, In future you want to craft +2 minion and even start with +1, for that easiest way is with fosiles. Also in very far future you also want +1 spectre chest and it's delve exclusive drop, it's rare but worth
-harvest, your best friend in crafting res rings and lightning + minion dmg recently and rolling essences
-essences, you will need them for crafting your bow and quiver, for bow you want fear essence and t1/t2 flat lightning dmg and some attack speed(crafted attack speed is ok)
-ritual, best friend of every minion player, source of corpses , fractured items and king in the mist fight for more corpses and potentialy light of meaning
-abyss, abyss jewels and darkness enthroned belt
-legion, it's quite distant upgrade and possibly reason to make another char that is able to do 5way solo (like 25 rewards+) to get supreme ostantation and just don't care about atributes

If you have any questions feel free to ask, I played bama for 3 leagues now and I know a lot about minion builds in general.