Warframe - Void Arcane Farm

Pretty much the best way to collect the new arcanes is to do void cascade on steel path.

It gets pretty hard to do very quick due to the flood of corpus units and the Thrax with high health, high shields, high overshields and high armor. Enemy level after half an hour already is at ~400.

They are vulnerable to viral and corrosive and with Unairu it is possible to remove their armor when using 2nd operator ability.