Dark wizard summoning a massive storm above valley

A Grand, Evil wizard wearing his Robes that have glowing runes all over them is standing on a big cliff outcropping that is over a beautiful vally with an ancient village far below. The evil wizard is conjuring up an unbelievable storm with clouds roiling, lighting and many tornadoes starting. the evil wizard is putting that little ancient village in great peril. Done in a fantastic fantasy art style reminescent of the masters of fantasy