If you have maxed mods youll need 2 forma. Exulsius can be what ever
To make this build work you will need a Stat stick and a PANZER VULPAHYLA
Recommend using Primary And Secondary Dexterity on weapons

Exalted Umbra Blade Build - https://overframe.gg/build/286427/exalted-umbra-blade/slash-4-woosh-blade/

Stat stick build - https://overframe.gg/build/237409/

Panzer Vulpahyla build - https://overframe.gg/build/257873/

Between the Stat stick giving you viral damage (with [Condition Overload])
the blade itself giving you corrosive and the kitty keeping you going, and lifestrike or [Healing Return] keeping you sustained, Theres nothing stoping you from murdering everything in the star chart (INCLUDING SP)
Replace the 3 with whatever Radial javelin procts with a melee combo i use warcry or Elemental ward with emmissive set to grey for cold for armor

ENJOY~