Ansem had a weapon....in the final boss fight, and his guardian. But Diz could be a totally different story. He may or may not have one....he probably does though. Diz and Ansem seem to be two different people, unless Diz is what Ansem used to be before Ansem cast himself to darkness. Then they would be one. But that still wouldn't reveal if he has a weapon. It depends upon him himself.