Bishopbane: Cover the knife with a virulent poison that induces high fever and hallucination in the victim once introduced to bloodstream. The poison reduces one of the victim's stat (taken randomly) each turn that can't be resisted but the effect can be ignored altogether if the victim has high enough POW (>2 than Andre) with those equal to him [same strength] have 50% to resist the poison. The poison coating last for three turns on the blade and have 5 turns cooldown. Poison persist for the duration of the mission, a proper treatment is given/taken, death or a week, whichever came first.
The amount of stat decreased:
2 points each turn if the target POW stat is lower than Andre's POW. (not always 2 points of the same stat, it could be 1 POW and 1 AGI)
1 point each turn if the amount is equal or +-1.
Should a stat get reduced to 1, the next time that stat got reduced, the victim receive damage.