This is the usual viral/electric build on the [Tak & Lug].

I recommend trying out gas damage instead of viral as well. The gas spread seems to work better at times in missions compared to viral sometimes.

The unique trait is as follows: Heavy attack hits in a wide area, inflicting blast status effect. With this trait, we will be using a heavy attack spamming build.

This forced proc blast damage will be great with the elemental damages we have since blast, electric, and slash will benefit from [Galvanized Elementalist]. Combined with [Condition Overload], you will be able to throw heavy attacks constantly and wipe out entire rooms easily.

I put [Primed Reach] on here so that I can hit more enemies, spread the status effects everywhere, and clear rooms faster. If you are fine with the range, then feel free to swap it out for something like [Blood Rush] or [Weeping Wounds]. I find [Primed Reach] more immediately useful.

If you want a Tennokai mod, you will need one more forma.