Divine Dragon's Wrath

A large ball of dragonfire engulfs a hand of your choice. Slamming a staff or similar weapon (in the hand engulfed in dragonfire) will create a circular shockwave, centered on the weapon that was slammed.

This shockwave goes out 360 ft and each creature must make a dex save or be dealt:

Within 10 ft: 8d20 radiant damage.

Within 50 ft: 6d8 radiant damage.

Within 250 ft: 5d6 radiant damage.

Within 360 ft: 4d6 fire damage.

After this spell resolves, you take 22 damage and gain 1 level of exhaustion.

The shockwave deals double damage to undead, and half damage to creatures that are blind.

Note* youll have to roll the damage maunually because dnd beyond wont let the spell damage caculate normally**