I have a player who fully buffed up his WP and is currently level 5 and he's taken powers from the Biomancy discipline. The thing is that the character he's playing (he's playing a female pysker) recently got bio-lightning and the acolytes are currently (or about) to battle the main protanganist of the campaign and they're all on a space hulk inside the warp.
Looking at the stats/details for this power, there doesn't seem any way for the target to deflect, dodge or resist it. As long as the power manifests, the target takes damage, and he usually rolls well, this means major pain time for the baddy boss and he (the boss) is an ex-inquisitor, I don't want her to finish him off too quickly. I want him to pose as a major threat. Other than having the baddy have house-made abilities or psychic powers that prevents the damage or she be affected by something that makes her powers weaker, I was wondering if there's any other way to handle this? She's ridiculously over-powered for a level 5 character.
Especially, intelligent and very cunning ex-inquisitor who had taken over most of the sector, and was up against a character that poses the greatest threat (among the PCs).