A Mage in a normal World

You are a powerful, not ageing mage. You lived for thousand of years, did everything you want and achieved everything you can. You fought in an Army, build a Kingdom, slayed Dragon and created new magic. But one day as you were creating a new Spell, you feel a strange power around you. Before you can react, you get teleported to another dimension, to a planed called earth, with no magic, no dragons, no elves.