Warframe (Fortuna) — Riven Disposition Changes (Buffs & Nerfs)
With the introduction of Fortuna we see some changes to Riven Disposition which will affect the stats of all existing riven mods.
You can find a full list of changes and the reasoning behind the changes on the official Warframe forums.
Some weapons got buffed, some got nerfed and sentinel weapons will be removed from the riven drop chance pool so I would get one for each before the prices get to high.
Warframe is a free-to-play cooperative third-person shooter video game developed by Digital Extremes for Microsoft Windows, PlayStation 4, and Xbox One.