Tanky Goat for Steelpath no problem just buff your self

the only think that you need to aware of in this build is that you get some range between you and the enemeys and recast 1 if its down

I prefer to play him with a weapon like the Kuva Nukor or Ignis Wraith

to get the tankines:

-cast 2 stay on it

-cast 3 for healing (100hp/s) and armor buff (520 Armor)

-cast 1 /recast when all partikels are away

So now to the mods whats important to have

[Narrow Minded]:

in this build its for range reduce its the only mod in the game that can reduce range whats important for the null star also the duration give you a reduce on the energy drain on the 3

[Adaptation]:

Just give you more tankines for Poison Procs etc.

Primed Continuity:

More reduce on the energy drain for the 3

Blind Rage/Umbral Intensify/[Power Drift] :

For Ability Strength that gives you more Nullstars and elevat your Healing and Armor Buff

Phoenix Renewal:

if you ever get in trouble this Augment can save your butt every 90 seconds

Physique/[Umbral Vitality]:

Lets give him some more tankines with more life also [Umbral Vitality] and [Umbral Intensify] are set mods whats elvate the stats on both a little bit

[Physique] is interchangeable if you want a other aura mod feel free to change i prefer it for myself

also Arcane Grace is interchangeable