amulet of fusing

While wearing this amulet put your hands on two items you want to fuse together. Make a DC 10 intelligence check. On a success the two items fuse together. The fused item adds any bonuses from both of the items and there magic effects. You get to decide out if one of the items is a weapon this fused item does to the damage the weapon does. If both of the items were weapons you get o decide which type of damage it does out from one of the two weapons. If you fail roll a D20 to find out what happens to you. 1-5 if your class wasn't wizard. Your class is now wizard for 1d4 days. 6-10 you fuse yourself with one of the objects you wanted to fuse. You now have all the abilities and magic effects of the item for 1d6 hours. 11-15 you are sent to the nearest monster lair. 16-20 you are sent to a random plane of existence.