Uriel's Flaming Feet

You blast off 120 ft in a direction of your choosing. The first creature you come in contact with, before the end of the spell, must make a dexterity saving throw. The creature takes 6d10 fire damage and is knocked prone on a failed safe, or half as much damage and is not knocked prone on a succesful one. If, after the inicial blast of 120ft, you have not come into contact with anything you gain 120ft flying speed until the spell ends. You are forced to use all of that movement on each of your turns, you are able to change the direction of flight by taking 30ft radius turns in a direction of your choice. The spell ends if you come into contact with any creature or object, in wich case you suffer the attack of the spell but the damage type is changet to blugoning. After the duration of the spell has passed you start loosing 30 ft of flying speed at the start of your turn, until it reaches 0ft and you are lowered gently to the ground.