A little advice on magic items reposted from the Runebearer website.
A legendary sword used to hunt enemy leaders.
A legendary sword that might save your life.
A legendary axe—once you are hit, there is no escape.
A cave with weapons sunken into the walls, blades sticking out of the floor and ceiling, and so on. Possibly, any weapon used in it could be torn out of the hand and sink into the stone.