Demiplane

You have a +2 bonus to attack and damage rolls made with this weapon.

When you hit with an attack using this weapon, you can immediately use your bonus action to cast Immolation on the creature that you hit. The DC for the spell is 15.

"Flames wreathe one creature you can see within range. The target must make a Dexterity saving throw. It takes 8d6 fire damage on a failed save, or half as much damage on a successful one. On a failed save, the target also burns for the spell’s duration (concentration, up to 1 minute). The burning target sheds bright light in a 30-foot radius and dim light for an additional 30 feet. At the end of each of its turns, the target repeats the saving throw. It takes 4d6 fire damage on a failed save, and the spell ends on a successful one. These magical flames can’t be extinguished by nonmagical means.

If damage from this spell kills a target, the target is turned to ash."

Once used, this ability cannot be used again until dawn the next day.

7th-level evocation

Casting Time: 1 action
Range: Self (15-foot radius)
Components: V, S, M (a drop of your own blood)
Duration: Instantaneous

This spell was created by the dark elf Malavon. It causes powerful beams of pure magical energy to surge outward from your body in all directions. Each creature within range (15 feet) must make a Dexterity saving throw. A target takes 20d4 force damage on a failed save, or half as much damage on a successful one.