[Heroka Vendile]

in Dark Heresy or Inquisitor?

Dark Heresy will have everything from a near-complete breakdown of Psykers in the Imperium and their different powers to numerous ranks in the AdMech and everything and anything in between. You can also expect DH to have a very big armoury and equipment range.

Inquisitor already more than covers both Interrogators and Psykers, although there's always room for more as far as the players are concerned.