That is about it let me know if i am missing something in the comments. Boss Blueprint - Hydroid Chassis, System. Boss blueprint - Rhino Systems, Chassis, Helmet Alloy Plate - Semi-rare, more likely to drop off the Fossa boss Polymer Bundle Circuits Fieldron Sample Earth. Like primed mods or rare golden mods on warframe.market.

For selling rivens easier use this site riven.market. Get the whole set of the prime item (or parts) and list that item on warframe.market. The next type of rare mods are corrupted mods, essential to most top-quality builds.

These are rewards from nightmare missions do something like exterminate or captures, or multitask with assassinations. Radshares is 4 people with the same relic upgrading to rad. There are another class of rare mods called nightmare mods, The most important ones are constitution, lethal torrent, animal instinct, and shred. Farm relics and then open them i recommend you to do radshares.