One of my players wants to buy Psi powers from the Rouge trader core rulebook.
The power he is after at the moment is pretty low level telekinesis, should this be an elite advance or can I just get his to purchase at face cost? I don’t want to set a bad precedent.
Without my DW core with me, don't Librarians have access to telepathic and telekenetic powers already?
It's been my experience any time a player wants to buy something 'low level' from another book they have big plans for it later, but then again my players are jerks.
It would totally be an elite advance as the player is purchasing a power that they don't normally have access to. The cost is another matter- I'd price it based on how 'low level' it is and what the possible ramifications with it integrating into Deathwatch are- what other powers can it be combined with for greater effect, what talents/abilities of a Librarian or Kill Team can it/will it augment, etc. I'd then do a comparison check of roughly equivalent powers in DW and price it accordingly.
Keep in mind that powers and cost don't translate well across the three books. Skills that cost 100 and 300 in DH or RT might cost 500 or 800 in DW.