No Riven / Hellminth Charger:

Any mod that grants Electricity is a good replacement for the Riven Mod in order to keep the damage type to Corrosive, for the multiplier against Grineers.

If you don't want to run the Hellminth (which I do strongly recommend you try) you can swap it with something like Killing Blow or Gladiator Might (event more crit damage) or even Blood Rush, based on your preference. The reason why I recommend Killing Blow is because Heavy Attacks CAN be triggered to throw the Exodia Contagion projectile. (Here's a video of someone doing it and showing how to do so.](https://www.youtube.com/watch?v=uu-DCxcGCac)

Anyway, this is a must: Hellminth Strain build for a crazy 120 % more crit damage at all time!

Limbo:

The Exodia Contagion goes THROUGH Limbo's Rift and will hit no matter what.

Inaros:

This is also PERFECT for long endurance runs with my boy Inaros. Since he has a HP pool over 9k, the mod Strain Consume can restore insane amount of health.

> Assuming all Strain Mods are fully ranked and equipped, a Warframe can recover up to 48% of their maximum health should the maggots die within range.

• Wiki - Stain Consume

• Wiki - Strain Set Mods

We got [Strain Infection] on the Zaw, [Strain Consume] on Inaros build and [Strain Eruption] and [Strain Fever] on the Hellminth.

48% of 11k is over 5200HP. INSANE.
That allows us to run Arcane Fury for 180% more melee damage instead of Arcane Grace for regeneration.

Mirage:

Utilizing a full damage frame like [Mirage] with Empower, it removes the need for combo count!
Damage cap hit at x1 combo!

Doing so, you have no more use for Blood Rush and can swap it out with Killing Blow, as it is a consistent way to improve your damage.

Enjoy!