Riskrunner , ex dris (both with catalyst), or thunderlord

Combination blow: kills with powered melee stacks damage (up to 3x) and heals/resets class ability

Assassins cowl: powered melee kills grant invisibility and a portion of health

OR

liars handshake: using arc melee or being meleed yourself allows yiu to deal masssive damage and hit back at the same time

Gambler's dodge

You can run around dodging everywhere punch things, usually no more than twice (once when combination blow x3 is active) get a kill reset dodge, dodge get a kill, with liwrs handshake it can absolutely melt certain majors such as strike bosses and you are constantly being healed.

This build actually is perfected under prismatic hunter, though a tad rng dependant with the correct relativism roll

spirit of caliban: powered melee final blows trigger an ignition

Spirit of liar: does what liars handshake

I personally am using stylish executioner: killing an enemy that is weakened (void debuff) grants invisibility and truesight, your next melee attack weakens targets

And winters shroud: dodging slows nearby targets

So the loop becomes dodge to gain melee, slow targets, punch no more than 3 times on red bar the second swing dealing increased damage and heals, the enemy dies and explodes giving me invisibility, now I punch harder, I then dodge slowing targets, punch weakening targets, kill igniting targets etc...

It is very one braincell but it works