Global was where I found my love for the class, hence the guide that came of that. Unfortunately, the class has a glaring design flaw, fueled by Global's/Steam's monetization model - as the answers here should demonstrate.
But first, a quick detour.
1. Weapons. What are the most desirable if costly and time spent do not matter? Mythic XM909 has similar stats to Valley of Death if they are well rolled Hokus Lokus Pokus for + 1skill? Hidra? I don't want to fight it in person because Swarm is practically the only skill it has and the projectile flies along the parabola.
This strongly depends on what your build intends to do with your hands. Master's Hands were quite popular, for instance, but they won't increase your damage as you seem to intend.
There are also two crucial factors that make this hard for any Global veteran to answer; one, getting desirable affixes was hard enough that nobody has likely tried every ideal combination on every gun, and two, +15 was out of the question. +7 was the practical cap for most non-payers, save for massive luck, and Forge enhancements are so massive they can tip the scales.
I'd assume, based on my +7 tests and guide findings:
-Crit-based Glyphs if you're going for VS/Swarm builds
-XM909s if you're going for a spell-free build
Between the two at +15, you can compare CDB returns and determine which one works best. I'm assuming that, at +15 and with some +radius, XM909s might come out on top and still suffice for crowds.
That is, unless another gun can outperform them at +15. Perhaps one might, but that's anyone's guess.
(Quick note here,
Hokus Lokus Pokus for + 1skill?
this won't work as Hokus Pokus Locus gives +1 to all Evoker skills:
https://hellgateaus.cyou/wiki/Hokus_Pokus_Locus.)
There's no point in trying to gear for other builds but gun or spell ones, sadly:
-ZF builds don't allow for VS/Swarm, and ZS doesn't crit (see RedHerd's observations here:
https://hellgateaus.cyou/wiki/Summoner).
-Non-gun, non-spell, non-ZF builds have nothing to do with their hands, and thus lose out on the massive potential of CDB.
Unless, through +15 and some massive +STR/+damage/+ele, you can make ZF autoattacks work. But even then, the "shape" of those attacks is poor, and won't be convenient for crowds.
CDB is a one-way street toward raising damage ceilings, too, as the following questions will make clear.
2. Does weapon upgrade in nanoforge to +15 increase minions damage?
No, minions are entirely unaffected by weapons (except for their +minion stats affixes).
3. What skills on weapons work with minions? xx% xxx Nova after Kill etc ...
None, minions don't benefit from or activate any weapon affixes.
4. What mods to weapons if I don't want to fight it personally? If I put + 9% Toxic damage in the weapon, for example, does Toxic Minion increase damage by 9% or maybe all mnions at once or all not?
The only mods that affect minions are +minion stats (go through the list for ones applicable to mods:
https://hellgateaus.cyou/wiki/Affixes).
5. Hes minions cant crits so how can i raise dps drastically?
There's no way to do so except through +minion damage. Minions' crit chance, if at all existent in Global/Steam, is unaffected by the player's crit/CDB values and cannot be buffed in any way.
So this is the class's design flaw; it has much more to gain from crit than from minions, which was why I eventually ditched the Warper and most non-Force Elementals.
First, the original design didn't account for any minion stats or interactions beyond the basics. The only tweakable stats were damage, health, and armor, with very few skill-bound exceptions like the Spectral Elemental gaining sfx with skill levels and the Warper gaining phase str during Spellstorm. Minions didn't get player stats or affix procs either, so all they could get to benefit from were 3 specific affixes.
Then, Global needed to push each and every class to the Forge. Rather, it couldn't let minion-based classes benefit much less from it, or compensate too much for it from other sources. To achieve this, it nerfed down minions' base stats; any +% affix's value is only as impactful as the base value it's buffing. Then, it steered clear of any kind of sfx synergies (eg Empowerment giving +sfx strengths, Eles buffing each other that way, etc). And finally, just to be sure, it *allegedly* (as this was never confirmed code-side to my knowledge, but might be confirmed now by modders) imposed a maximum +minion damage cap (
https://hellgateaus.cyou/forum/class-discussion/is-there-a-cap-on-minion-dmg/msg52271/#msg52271).
So, in this crit-obsessed context that best facilitates the +base damage Forge against inflated Hell mode bosses, the class has immeasurably more to gain by leveraging crit than by focusing on its minions' damage. Global gave zero new ways for minions to be built, and limited the effects of the one they did have down to a fraction of crit's.
There's just no reason to not become either half an Evoker with Forces or a crit-based gunslinger, because there's simply no other alternative - minion-based or otherwise.
Now, if you want to change that, you'd need to mod the class quite extensively. Say,
-tweak minions' base damage/health/armor/crit/CDB values
-locate the +minion damage cap, if one exists, and remove it
-modify minion skills to provide more damage, attack speed, crit, sfx, or other standalone or synergistic effects
-modify minions to somehow be affected by more fitting affixes, like +toxic damage on mods
-have minions somehow take up the player's stats (eg shield penetration)
And if you're really feeling adventurous and ambitious, craft proper inventories for them so they can equip tailor-made gear for even more bonuses. It should work for Demons, at the very least, and there's the Drone's precedent for that.
But without mods to how the class or the game itself functions, that's pretty much where the class stands. I'm still reserved on just how the option of +15 (or higher, as mods have done) affects weapon choices, but minions are now stuck in a rudimentary state; basic in their build options, and extremely secondary to total or maximum class performance.
Unless, of course, you care for Commands to spice up your gameplay.