Optional: Use Augur mods on a heat inherit pistol e.g. epitaph/[Kuva Nukor] to increase damage on select targets.
Streamline optional over Augur Reach, and reduce rank of Fleeting Expertise by 1.

MAKE SURE INVERT TAP/HOLD ABILITIES FOR [Gauss] IS INVERTED SO HEAT SUNDER IS TAP INSTEAD OF HOLD

PLAYSTYLE

1. Activate 2 and 4 and keep active. Taking damage while 2 is active will let you quickly regenerate energy.
2. Spam 1 + cold sunder (hold 3) until battery hits 100%. You can also alternate casts of cold and heat while waiting for battery to hit 100% so you are still maintaining kill rate.
3. When at maximum redline, you can start spamming heat sunder (tap 1) as needed. To strip armor just cast a cold sunder after heat sunder. To deal a large amount of damage quickly, spam heat sunder 2-5 times (tap 3) then cast cold sunder (hold 3) to full strip and compress heat procs into one big instance of blast damage.
4. Whenever 4 runs out, recast 4 and repeat step 2

MODS

Aura
[Brief Respite]: Allows easier shield gating, but can be replaced by just having lots of augur mods on frame and pistol.
[Corrosive Projection]: Reduces Enemy armor to 82%, meaning Thermal Sunder blasts only require 82% redline battery to full strip.

[Archon Vitality]: Rank 0 is all that is needed for the passive effect of doubling heat procs created by each cast of Thermal Sunder
Archon Flow: Incidental kills with Cold Sunder can create large energy orbs (50 energy), once every 10s

Archon Mods
1-2 cast speed shards optional
3-5 duration shards

HELMINTH

Roar is optional over 1 for triple dipping final thermal sunder blast explosions. Even at just 100% strength, a 30% roar triple dips for a final 2.197x boost to Thermal Sunder explosions.