empowering flame

You're sheer power of will sets you ablaze with a type of empowering fire.

When you activate this spell your initiative goes up by 1, and your move speed is doubled. As a bonus action you can enrage the flames causing a burst of fire in a 10ft radius sphere around you, all creatures within the sphere including yourself must make a DC14 dexterity saving throw taking 2d8 radiant damage on a failed save or half as much on a success.

When you cast this spell in a spell slot of third level or higher, increase the initiative gain by 1 per level above second, and the radiant damage by 2d8 per level above second.