Only using 2 forma, this build is focused on having your 4th up permanently dealing crazy damage.

Your 1st will be your main source of survivability with your 2nd passive providing status immunity, the arcane blessing and [Adaptation] are there to passively allow you to health tank as the mission goes on further, but this can be opted out for arcane energize and [Rolling Guard]. If you rely on this then you need to keep your 1st up always, and if your start taking a hit you can dodge forward to give you time to use your 1st again. I prefer the passiveness of a large health pool from blessing and DR from [Adaptation] compined with status immunity from the 2nd passive.

Invest atleast 3 blue archon shards to increase your maximum energy because we are not running a [Flow] on this build and we will be using our 4th immediatly.
Including 1 or 2 yellow shards to increase your starting energy will compliment this build nicely but are not neccessary.

The loop will be as follows;

• Start mission, hold 2, Cast 4.

• Cast 1 as soon as you have sufficient energy, this will ramp up the damage of your 4 and increase your survivability.

• When you have max energy, deactivate your 4 and cast your 3, this will increase ability strength by 50% for next cast, which will be your 4th. Now sitting at over 288% thanks to molt augmented.

• Repeat once more once your molt augmented has reached max stacks so your 4th ability can be increased by 110% power strength from molt augmented and your 3rd ability once recasted leaving you at 348% strength.

• Keep your 1st up at all times to keep you alive and ramp the damage up to 1 shot everything and aoe slash hordes of enemies.

At max rank, with 348% power strength, your 1st ability active, 5 succesful direct kills (x10 combo on the screen for the ability) and a status effect active on the target your 4th ability will dish out 3,429,888 total direct slash damage before damage type resistances, and 1,200,460.8 true damage in slash procs.

If something could survive the initial attack and survive the following 6 ticks of slash damage it would sustain a total of 10,632652.8 damage.
Through out my testing this one shots everything and the 4th ability has [Condition Overload] so using your 2nd to apply status and having a [Diriga] as your companion just keep the damage output very high.