A fun generic assault rifle build for Deimos Infested and Grineer factions when you are just tired of using super effective and healthy choices such as [Kuva Zarr].

The modded fire rate is similar to that of popular assault rifles in real life, so it feels quite familiar and nice.

Kuva Karak has near zero recoil, good status chance + fire rate, quite even distribution of Impact/Puncture/Slash damage types + additional elemental damge, and not bad critical stats.

For this reason, the already known to be better [Kuva Hind], [Kuva Quartakk], and even [Prisma Grakata] work well with this build, if not with better results.

I always liked the feeling of this rifle, but the stats seemed worthy of building for a truly generic assault rifle with the potential of utilizing the [Galvanized Aptitude] mod better than some rifles.

You can always use your other weapons and Warframe abilities to easily reduce enemey health/armor/shield and get kills with this rifle to proc the Arcane and Galvanized mod effects.

(Or just shoot them till they die with no fuss.)

After that, try to group enemies with Warframe/Operator abilities or just start blasting in general vicinity of enemies to [Shred] them. It works fine against singular enemies as well though.

The weapon has almost no recoil, so going for headshots is very easy and shows some remarkable damage spikes.

Radiation damage was selected mainly beacuse it is an uninterrupted additional proc for the [Galvanized Aptitude] mod. (Plus as miniscule CC and Alloy armor counter, it is not much though.)

You could go Magnetic in that logic if deemed necessary. I did not farm more after around +30% elemental damage bonus to keep the even distribution of damage types.

Viral + [Hunter Munitions] + Heat + Primary Merciless Arcane would net much better results for sure, but I just wanted to use a less effective damage types for fun somehow.

Have fun.