That is complicated. It would seem to be difficult to determine what is going on to a player who acquired this in a roleplaying game unless the DM were to provide some background or explanation. Probably I would not be good enough to moderate the use of such an item without really screwing it up, so I will leave this little goody to the experts. Go to Comment
Actually, who needs a back story for this. It does not need a backstory. The origins can be lost to time. It just needs some legends or fairy tales related to that item. Perhaps the item has the same sort of legend as the Emperor's New Clothing. That way, only foolish players who did not read the campaign's setting packet who would be caught by the item. Go to Comment
If I had created it, I would have it invented by Queen Yocasta's Royal Mage, after he heard that a powerful noble wanted to assassinate the Queen.The noble tried to use it and was cut down on the spot. Go to Comment
Splendid idea. I only wish that my group wasn't sticking toghether all the time.
I will have to force the unfirtunate who's going to find this merry knife away from the group.
A definite "will use", bravo sir. Go to Comment
Herbalist in the group mistakes one plant for another and mistakenly poisons the group. Not to death, but pretty darn ill with recurring symptoms until the cause and cure are realized. (Local people may be able to help rather easily. "You ate Dragon's Rot you fool, looks and smells just like mint except it has these small thistles on the root. Only grow in the Hornwood Forest, that must be where ya got them. Eat this and you will feel better in 4 hours."