This Riven challenge is very easy and can actually be done with any Warframe you are comfortable with, especially if you select a low-level mission. Equip your favorite weapon and also remember to equip the Riven mod!

If you are new to Warframe then just pick a tanky warframe like Rhino, Inaros or Nezha and jump into any endless mission you prefer e.g. Excavation, Defence, Survival etc.

Good luck Tenno!