This build is a variant of my other build, this one being based more around single target damage (much higher single target damage).
For a build which is better against larger groups of enemies see the build link below:
https://overframe.gg/build/60179/karyst-prime/heavy-attack-gasslash/
Damage Type Explanation:
The use of gas makes this build better against large groups of enemies.
The gas procs don't skip shields but they ignore armour. (The shields will be gone with the initial strike, and any slash/gas procs will take care of health.)
Slash does not go past armour, but once the shields are gone (most likely with the initial strike) the combined gas and slash will [Shred] health.
Mod Use Explanation:
[Covert Lethality] is used to provide bonus finisher damage (+100%)
The Sacrificial mods are both used to give the maximum crit bonus on heavy attack (+550% crit on heavy attack when sacrificial steel is maxed)
And primed fever strike is used to get higher damage.
Replacable Mods:
Sacrificial Steel can be replaced with true steel.
If you don't have [Primed Fever Strike] it can be replaced with normal [Fever Strike].
This will result in the setup not being as effective, but will still be relatively good.
How to obtain the rarer Mods:
Sacrificial Mods - Complete the sacrifice quest
Primed Fever Strike - Can be obtained from Baro Ki'teer (Not guaranteed to be brought by him every time, but will turn up every so often)
Covert Lethality - Can be obtained from Tier 3 Spy missions/Kuva Spy Missions (~7% chance to be obtained when you complete all 3 spy vaults