Without going into too much detail, in my current campaign my GM has made one of the major antagonists of the campaign a Primaris Psyker. This Psyker is extremely powerful (GM has commented out of game, that he's basically the equivalent of a mid-rank Ascension level Primaris), and he's managed to piss off the whole party, for a variety of reasons, all of them personal. My character is no exception.
Of course, the first chance, my character got, he ended up confronting the guy out of rage and the results were exactly what you'd expect from an unoptimized Rank 6 Savant Psyker vs a Rank 12ish Primaris Psyker.
It's gotten me thinking though that my own character's quest for vengeance on this particular Psyker is probably going to start pushing him into tailoring his abilities towards fighting him.
Only problem is I can't seem to figure out too many advances that can be taken that are particularly effective against a Psyker stronger than mine. About the only thing I can think of is Weaken Veil, and I did learn from the brief fight my character had with this guy, that the other guy at the very least has Favoured By the Warp, so increasing the chance of Phenomena probably isn't going to help me very much.
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As an appendum. It's not that I'm trying to make my character be able to fight this guy solo-- but at the very least start working in a build that would allow my character to basically serve as a counter to opposing Psykers, since I can't seem to find a whole lot of talents or abilities that are particularly useful towards that end (especially since, due to an unfortunate turn of events, my character now has a -10 to resist Psychic Powers.... permanently).
Edited by ColArana