What are good wishe's for D&D?

Ok, So here's my problem. We slayed a Dragon so our DM gave us a wish stone, and this is my first time ever having one or even playing D&D so, I need help on making a good wish. We have to use it soon or it goes away and we can only use it once. Nobody in my party is dead either. Ok so my character is a 5th level illusion mage, and I don't know many magical weapons, and I have the hand of Vecna. For those of you who don't know what the Hand Of Vecna is, then let me tell you. Vecna was a evil VERY powerful, VERY evil wizard who could basicaly beat anybody, but he was eventually beat by a warrior somehow somewhere, i don't know that much about Vecna himself. But he put his hand and eye in a box so he could live on after his death. Now if you find the hand and accept it, it will replace your right hand and it has all these super powerful power's and benifits and stuff. Like a disenegrate ray, you can summen the dead and darkness and you have a 19 strength with ONLY that hand, but I don't want it because it turn's your player evil. And this is my very first time playing and I have NO idea how to act evil so I don't want it. But the DM wont let me wish it off because the hand make's you WANT to keep it because it's evil. So my player wants to keep the hand but I don't want to. Is there anyway around that so I can wish for the hand to be gone.. Oh and are there any other usefull wish's I could wish for?