[BeZeRkEr]

craft a sword with a diamond and get piercing attack
pierces the armor of enemy
craft a sword with a gold and get a sword of shock
electrifies the enemy and freezes them momentairly
craft a sword with coal and coal and get a black sword
like darkens the players vision or something
craft with durby and get a sword of fire
like shoot fireblasts around yourself to make a sort of shield


just a few ideas
none would work im sure

a piercing sword would be awesome