A beam of burning black necromantic energy shoots out and begins to engulf the target. The target must make a Constitution saving throw. On a failed save the target takes 2d6 necrotic damage and 2d6 fire damage and is engulfed in Blackfyre for the spell’s duration. In addition to the direct effect to the target, Blackfyre spreads rapidly to any creature who is adjacent to an engulfed target. If a creature starts their turn within 5 feet of an engulfed target, they must also make a Constitution saving throw, on a failed save they are also engulfed. These magical flames can’t be extinguished by nonmagical means.

If an engulfed target is reduced to 0 hit points, the target is turned to dust.

This spell can only be learned by way of The Book of Vile Darkness.