Use Zenurik for energy, any arcane will work for this build, [Safeguard] is an optional slot here so you can change to anything or reaping chakram when you are soloing or don't like tagging people/pets to give them shield.

What stat should I focus on?
Strength>Efficiency>Dura>Range
I find my comfor spot around 100% range and 100% dura, nothing more. Although I do want a little more efficiency because you spam #2 a lot with this build or as [Nezha] in general but going for corrupted mods on Effi just not worth it, and thus this build was born.

Why not [Health Conversion]?
The reason that I choose [Adaptation] over [Health Conversion] is because this build can still [Protect] you even when your halo broke or you ran out energy or accidentally step into bubble, where with [Health Conversion] if you cannot regenerate enough health orbs, you are not using its fullest. In addition, you want 3 stacks of [Health Conversion] before casting halo, this is just too much work to set all that up for some amount of halo shield when you can recast as soon it broke (You have 1s of invu unlike [Rhino]'s iron skin too) without worrying about 1 shot, and even if you forgot, we have [Adaptation] here. Furthermore, [Adaptation] works nicely with halo because unlike [Rhino]'s IS, halo doesn't absorb all dmg but 90%, so as soon as you take a hit, adaption will start working right away, so at the time that your halo broke, you are more likely to have another 90% dmg reduction from it.

What about Equilibrium?/ I don't want to use zenu?
You can use it if you want, but I never find a need for it, plus there isn't much space left to put it in. However if you wish to use it no matter what, I have a few builds use it:

• Equilibrium with efficiency https://overframe.gg/build/23614/

• Equilibrium with Reaping Chakram https://overframe.gg/build/23615/

Tip: Put [Synth Fiber] on your pet so [Equilibrium] will always work, even at max hp.

Feel free to mess with them if you want.

How to play [Nezha]?
[Nezha] is extremely fun and easy to play, you can build him throw to win or teleport around with #2, or ragdoll enemies and throw a #2 at it and watch it goes crazy.
Always keep #1 and #3 up at all time, use #4 when there are a lot of enemies or you want to cc to res teammates etc, and use #2 to debuff enemies and kill them with guns or melee. I find guns more convenience because without [Blood Rush], melee isn't very strong and #2's debuff isn't weak either. To give you an example, with a [Pyrana Prime], I killed a lvl 150 corrupted heavy gunner in 2 hits, yes, two headshots is all it took, my friend even killed one with a normal hit with [Redeemer Prime].

End note: Go and have fun with this build(s), if you have any suggest or question, simply ask in the comment, I will try to answer when I see it.