New Sword power....NOT!!!
Sharpness: A sword or any other bladed weapon with this ability is always made of Adamantine. and on a roll from natural roll from 18-20 vs. an opponent of equal size armored or not it will sever there extremity. For a creature or person larger than the wilder it 19-20 to sever there extremity. And vs. Solid stone/ metal constructs and there type a natural 20 needs to be rolled. To determine which extremity gets it make a small list example: 01-02 Left arm, 03-04 Right arm, 05-06 Left leg, 07-08 Right leg. Or for a lizard man 01-02 Left arm, 03-04 Right arm, 05-06 Left leg, 07-08 Right leg 09-10 Tail. I would put this in value at just under vorpal because you are going to take the critical damage and lose an arm so its still nasty........But that’s just my way.