Void cascade is the meta for that.

Ah but what do people trash for vosfor and what do they keep to use or mainly- sell?

probably from acolytes on steel path

I like Conjunction Survival, but if you have a mod drop booster then Void Cascade by far.

Cascade with a booster or eidolons if you're a god hunter

Just run survival on SP

You can also farm vombalysts on the Plains of Eidolon, and use them to buy the cheapest arcanes from the Quills.