Heavy Spam Incarnon Zaw, with max critical chance and attack speed to optimized forced slash procs and Exodia Brave for energy economy.

Entering Forced Melee mode by holding F and then manually blocking makes it much easier to time your inputs to repeatedly to the spin part of the heavy attack chain, which has a huge radius, a force slash proc, and lets you move freely while attacking.

Requires Ready Steel, sourcing attack speed from your Warframe (Intended for a high duration Gauss build), and Viral priming by your companion. Violet Melee Critical Damage Archon Shards also greatly increase damage output.

Carnis Mandible completes the Carnis set for status immunity while killing, and also increases status output and slash weighting to complement the forced slash procs. Virulent Scourge adds toxin damage to bypass the shields of SP Corpus enemies, and Shattering Impact allows you incidental armor strip on boss enemies with capped slash procs. Everything else are fairly straight-forward damage increases or utility.

If you get good riven roll with initial combo on it, you can replace Ready Steel with Swift Momentum and dropping Amalgam Organ Shatter.

Gauss + Overshield is alone not enough to max out Melee Retaliation, but it still gives a simple and consistent damage bonus. The extra damage isn't really needed though, so you can easily replace it with whatever other arcane you want, though then you might consider replacing Amalgam Organ Shatter with Killing Blow in that case, though since you also get melee damage from the Incarnon Transform and Kinetic Plating the different is fairly negligible.

If you run Melee Fortification you can make Health Conversion on the frame a flex slot.
Melee Crescendo could give you some massive combo multipliers on your heavy attack, but requires a bit of setup, and you would need melee efficiency for the combo bar to refill between swings.

Since your critical chance from the Steel mds and rives is doubled on heavy attacks, Melee Duplicate requires 106% critical chance before doubling to have the highest chance of proccing while using Versatile Creed, which you can get very close to with just a True Steel or [Sacrificial Steel] at rank 4. If you want more status, your options in order of increasing status are:
Vargeet Jai II, which would require 150% ( [Sacrificial Steel] rank 7 or [Sacrificial Pressure] + [Sacrificial Steel] Rank 5),
Jai II, which would require 227% ([Sacrificial Steel] rank 10 or [Sacrificial Pressure] + [Sacrificial Steel] Rank 8),
Ekwana Jai II, which would require 307% (Riven + [Sacrificial Steel]),
Ekwana II Jai, which would require 450% (Riven + [Sacrificial Steel] + [Sacrificial Pressure])

Intended for use with Weapons Platform Gauss v3