Okay so hear me out...

Why radiation? Cuz of innate electricity you could go for a Corrosive build, WHICH IS GOOD don't mistake it, but i funned around in simulacrum a bit and the pure base damage it deals like this is WOOOSH nice. Also a lot of stuff takes more damage from Radiation, plus I kinda feel like I'm using the School of Illusion by confusing every enemy I cast a spell on }:)

Plus for armour strip we have the new mod on the exilus slot, and pillage so... I didnt see it really needed.

This thing is also SUPER FUN with something that boosts fire rate, like my boi [Gauss] or a [Wisp] mote, since, as it seems Tennos have unlimited mana.

I run everything with the Tenacious Bond mod, and that boosts me up to 3.2x crit multiplier and with all the statuses I had times I crited 50k-70k in mission per projectile, so I skipped on the [Primed Target Cracker] mod (again, i went for optimal status with high base damage, not a crit build)

I'm a bit unsure about the Arcane, because I don't have enough time or mental capacity to farm and try them all out, so I went with the most generic one, go ahead and change it up depending on the playstyle.

The weapon is also great for being a Primer, because the alt fire 100% does status, and in that case go for another exilus and arcane that doesnt need kills to activate;).

This is more of a fun build so don't judge too hard on it, but I personally sent a lot of the new enemies into the shadow realm with this build >:), so go and blast some eldritch sh!t into the faces of the enemies!

Be off and good luck with conquering the labs, Tenno!