This Incarnon [Furis] build that requires 4 formas. With this setup, you can blast highly armored enemies back into the void pretty fast.

Incarnon:
Incarnon Furis is an AoE flamethrower-like gun with automatic fire mode. This is similar to [Ignis], but with a little wider cone and shorter range (about 16 meters).

Evolution II: Haven Foray (Damage +28, and Damage +30 with overshields active)

• Another option that increases multishot with Electric damage is not practical

Evolution III: Any

• Mostly, Evolution III in Incarnon Genesis offers utilities that usually don't affect Incarnon form.
• I choose "Practiced Grip (Accuracy +50%)" to make it a little easier to land headshots. It supposes to affect the Incarnon form, but Incarnon Furis is a flamethrower...

Evolution IV: Elemental Balance (Status chance +28%)

• This is for optimal status proc. You can trigger Cascadia Flare to the max (Damage +480%) pretty fast.

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1. Incarnon [Furis] has innate Heat that goes well with Cascadia Flare. So, we want to keep this.

2. Use Warframe that can gain overshields for slightly more damage potential from Evolution II, but this is not necessary.

3. You can change from Corrosive to Viral if you'd like. I choose Corrosive for armor stripping, as Heat can deal considerable damage on its own.

4. This build is strong enough for most of the content, including the Steel Path, even without any buff from abilities. So, buff it to your heart's content!!

5. In my actual build, I have a Riven mod (- polarity) with Damage +237% and Heat +92%. I use it to replace [Primed Heated Charge]. This increases total damage from ~1300 to ~3600 with the current Disposition (***Remember: These numbers could change with Riven Disposition). You would need 1-2 more formas with Riven mods, depending on polarity.