Hey there, after seeing this thread and reading the comment /u/zaedulus posted describing a mechanical change to the traitor keystone I decided to test myself in standard to see if it had been changed since I last tested it.
I was able to confirm that the traitor now gives 4 flask charges TO EACH equipped flask every 5 seconds per empty flask slot (and no, flasks in a disabled 5th flask slot using a micro-distillery belt do not count as an empty flask slot if you're wondering).
What this means is that the traitor is effectively quadrupled in effect while using 4 flasks, tripled in effect while using 3 flasks, and doubled in effect while using two flasks in comparison to how it used to function. This puts it at 80% the strength of pathfinder's nature's boon, ignoring the timing aspect of when you gain charges.
This could potentially lead to easier flask sustain on a majority of builds and open up completely new build concepts focused on "abusing" certain flasks.
I tested with 0 flask charge gained modifiers so I don't believe anything affected the results, and I would get the exact expected amount of flask charges each time. If you experience different behaviour or have further input please post a comment, I'm a big flask fan so this has got me pretty excited (hopefully this is an intentional buff but just undocumented as the traitor was a pretty useless keystone before).
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