Cruel Sun

You channel the light within you,  the light that exists in all creatures of good and concrete it into a blazing ball of flame, resembling the sun. It's brilliance unparalleled and heat radiating off it, the very air begins to wave and crackle with its heat. You throw this sphere at your enemies and ignite them with its majesty. 

 Make a ranged spell attack at a target within range. On a hit the target takes 5d8 fire damage.

In addition any creature within 5 feet of the original target takes half that damage from the radiant heat.

Any flammable objects within 30 ft of impact ignite into flames.

If you cast this spell with a slot of 5th or above,  the damage increases by 1d8 for each spell level above 4th.