Drager wrote:What do you think happens if you use them multiple times on the same unit?
The rulebook
FAQ states that Identical Auras don't stack, but these aren't auras, that being said...
As for the doubling stratagem, it wouldn't work because it only doubles the original effect, not the bonuses effect. You've basically got two rules saying "double the basic effect", but that doesn't make it 4x the effect because it "overwrites" the first.
Order of operations:
Drug says do this
Stratagem changes drug to say "Do this but DOUBLED!"
Stratagem changes drug to instead say "AH-HA! THE FUN HAS BEEN DOUBLED!"
So the result is still a doubled drug but more pointless overdose wounds.
Same for the Power From Pain stratagem. You have two rules saying "Treat the battle round as one higher", but they apply to the current battle round number, not to the altered number from the first use of the stratagem.