Bruh moment

You utter the almighty word "Bruh," and a 20 mile by 20 mile sphere centered on you erupts out, dealing 100d12 fire damage and 50d12 force damage. if a creature survives this almighty attack, they make a strength saving throw. on a success they are pushed back at 1mile per second which slows down until they are ten miles away from you. on a failure they are pushed back 20 miles in the same manner. this requires you to give up your life or another creature with a level 9 spell slot or for 2 wizards to use together, not killing them or the life of a dc 35 creature or higher.