Rapier of a Radient Hero

One of my DMs introduced a cursed rapier containing the personality of an old warrior who would talk at length about his many valiant exploits in battle, but if literally any fight arose he would immediately advise his wielder to retreat. Wielder made a saving throw; if he failed, he had to run away from combat as quickly as possible (plus the sword casted Expeditious Retreat on him). However, if you made the throw the sword was a regular +2 (or whatever it was) sword, albeit one that would complain and question your sanity and judgment with every attack you made.

8D8