One of my players is currently playing a Medic character with some intriguing backstory that left her with a "confidential medical report" Signature Item and d6 X-drugs in her possession. I want to make something out of this, to hint at a sub-story where the Medic was chosen to test out some experimental pharmaceuticals for the Company. So, let's come up with some interesting, yet not too complicated (as my stupid brain must be able to remember it on the fly), ideas & rules for what this X-drugs could be. Yes?
I'm leaning towards it having something to do with Xenos', so probably some sort of Queen Jelly type extract, but I'm open to other alternatives, too.
What should a Queen Jelly extract X-drug do? Gain +5 Strength and the Overkill talent for a shift, and then suffer pain and depression withdrawal symptoms for a day afterwards? Something like that? (Note, I need the drug to be pretty effective so that the PCs will actually dare try it out in a pinch... my players being cautious and all. Also, the PCs ARE going to fight Xenos at some point, so... an optional edge for them to chose would be good).