I made a riven calculator that tells you the probability (and kuva cost) of getting your desired roll. Fully customizable and easy to use! : r/Warframe
I recently got scammed in Riven Market. Learn your lesson from me as DE will only give automated response if it were happened to you in the future : r/Warframe
Steam Community :: Guide :: How To Make Thousands of Platinum Selling Rivens
Riven Mod Endo Return Formula - Warframe Helpers & Guides
how to get riven shows like that - General Discussion - Warframe Forums