Crimson flames briefly engulf a target that you can see within range. A creature targeted by this spell must make a Dexterity saving throw. On a failed save, the target takes 8d10 fire damage. If this damage reduces the target to 0 hit points, it is burnt to a pile of ashes.
A creature destroyed this way and everything it is wearing and carrying, except magic items, are reduced to a pile of ashes. The creature can be restored to life only by means of a True Resurrection
or a Wish
This spell automatically burns up a Large or smaller non-magical object. If the target is a Huge or larger object, this spell burns up a 10-foot-cube portion of it. A magic item is unaffected by this spell.
When you cast this spell using a spell slot of 6th level or higher, the damage increases by 1d10 for each slot level above 5th.