Just a nice and okay build for steel path [Valkyr] hysteria.

1. Why [Umbral Vitality]? Because having some survivability outside of hysteria is better than none(also it buffs up [Umbral Intensify] a bit and means I don't have to use an umbral forma, of which I don't have, if I just cut [Power Drift] a bit) use whatever else you'd want.

2. If it's a hysteria build than why is there no efficiency? Easy! When it comes to energy drain abilities they are directly correlated to both duration and efficiency, so by bumping up duration a ton I benefit on both warcry and hysteria which work almost purrfectly together (fml I [Hate] myself for that)

3. Why defy and why replace rip line instead of paralysis? First off use whatever helminth you want, silence for instance is way better, however I just like it as a comfort type pick since I don't like being in hysteria for prolonged amounts of time. Also why would I replace paralysis which actually has SOME utility with the one that has none.

Now I'm just going to generalize what I picked.

Equilibrium - Health orbs equal energy do I even need to say more when it comes to hysteria and it's energy drain.

Arcane Fury - If you are indeed using this build than you should be using some kind of stat stick with the three gladiator mods on it, this plus the usual crit mods allow Valkyr to enjoy nice red crits after a bit of combo.

Arcane Energize - Utility/Comfort, not necessary but definitely great for the build and sustain to keep hysteria up.

Eternal War - Hysteria is quite obviously a melee ability so it benefits quite nicely from this attack speed buff and you can keep it up indefinitely by just killing enemies, also has quite a bit of utility if you run out of energy as you still likely have this up meaning you have bonus armor from it and if need be you pop defy which makes you invulnerable, then gives you a straight buff to armor, not too bad if you need to get primary weapon kills.

Anyway in closing this is just a laid back and invincible build for [Valkyr](minus that one asshole acolyte) with many different options you could swap out for personal use such as decreasing the lost range of [Narrow Minded] to allow for [Banshee]'s silence, [Umbral Vitality] if you're okay with putting something else in that slot, defy obviously, and even the arcanes if you want to. But if you replace [Equilibrium] I will find you. That mod has been a life saver for me all of a sudden and I cannot thank it enough for existing.

Edit to the build: so personally I now think silence is better I just can't be bothered to rewrite all of this, also replaced [Umbral Vitality] with [Augur Secrets] because you get more benefits from it