I've seen used "Master Psyker" as a rule for models that can cast 3 powers a turn (which I intend to use as a standard in my homebrew stuff), I'd like suggestions for a name for being able to cast 2 powers a turn.

Thanks

Warlock?

Moderate psycher,Psycher adept.
Proficient. Adequate, not too shabby. 100x better than ahriman.

A Librarian is called an Epistolary.
If you have;
1 power = psycher
3 power = master psycher
2 power = adept psycher

Just re-arranged KMBs terms.

I quite like Adept.

Amusingly, having just been up in the loft, FW already provided a possible answer as Hector Rex is a "potent psyker" but they used "master psyker" for the new Red Scorpions dude

Oh well....