In the version of Gothic 2 Night of the Raven, you can take the sword “Claws of Beliar”.
If you pray for the statues of the dark God several times, you can increase the strength of the blade. Jokes that the sword adapts to you. What kind of weapons you better own (one-handed-two-dimensional) so the sword becomes. And praying 5-7 times you can turn out to be the owner of the most powerful weapons in the game (though with 100 points of life have to say goodbye).