Psykers in general in the setting. The final consensus is that any participant who can't find a use for a "cursed" merchandise is not attempting laborious enough. Another cursed sword (which makes an look in Baldur's Gate) really gets a bonus to hit and harm to encourage folks to use it. Similarly, the 3.5 DMG goes so far as to listing a sword that enrages the consumer as being boon or bane, depending on the wielder's personal views.