A mythic sword thats only power is legend.
The tears of a blinded god created it.
A list of harmless (if sometimes annoying) potions.
A blade that lives, and has lived for millennia.
The story I am about to tell you is one of magic and of monsters, of bravery and courage, of good and of evil, but most importantly of Flame and he who wished to quench it - Old Cro, the story teller.
In one region of a forest, all of the trees are identical, down to the leaves and the twigs. If the PCs carve something into one of the trees, it could mystically propigate until it covered all of the trees, or could vanish since it was not carved into the one true tree.