Arelith

I think a +1 or +2 ECL character creation Gift that allows a character to use poisons as if they were an assassin or blackguard (i.e. without having to make a dexterity roll against poison) would be good -- multiclassing into those classes isn't an option for many characters who would otherwise make use of poisons (they are both designed solely for Evil characters, while my understanding is that poisons are fair game for anyone who doesn't subscribe to a code of conduct forbidding them).