Hello.

This build for [Proboscis Cernos] is about fast firing multiple projectiles for grouping up enemies, spreading status procs and dealing damage.

[Primed Fast Hands] is personal QoL preference, it (or any +dmg mods) can be easily swapped for more multishot, status chance or another element.

Build was made for an example of synergetic weapon for Inaros Elemental Sandstorm build: https://overframe.gg/build/103047/

Huge detailed guide about Sandstorm ability, Helminth builds, useful synergies with links and some extra information : https://redd.it/k7cw3c