[Inaros] has a lackluster base kit so most builds after the introduction of the Helminth system will focus on the new ability. This build dumps everything into duration and strength and uses a subsumed ability that fits into the stat distribution.

Nourish, Smite, and Shock all increase the elemental damage of your weapons and even some of your abilities. This lets you save a mod slot or two on your other builds in your loadout. Nourish is the easiest to slot in as it doesn't require an augment but the other two can be run if you replace Negation Swarm.

This build can also work with other damage buffing abilities like Xata's Whisper, Roar, or Eclipse. It even works with hybrid defensive/offensive options like Elemental Ward or Warcry. We don't really need those buffs to kill enemies but they can help you and your team to run unconventional or off-meta weapons.

Sandstorm is replaced because it's a horrible ability but any of the others can be put on the chopping block depending on the content that you're going against.

Arcane Grace and Arcane [Guardian] help to increase your survivability in all content. They can be replaced with offensive arcanes if you're planning on going to the level cap as everything will be instantly killing you at that point anyway.