These rare mods can be farmed in The Index on Venus planet. These mods are not easily available and dropped off from the enemies but there is one location and activity where you can farm the mods which we have mentioned in this guide. This week Warframe has added a new Nightwave Challenge called Enhance Challenge which will require you to collect 8 rare mods. In Warframe, naturally, every player will be looking to get hold onto a bunch of mods whose rarity will be of high and best quality.