Hell Smite (5e Spell)
From D&D Wiki
|Casting time:||1 bonus action|
|Duration:||Concentration, up to 1 minute|
The next time you hit a creature with a melee weapon attack during this spell's duration, your weapon roars with the soul-scourging flames of hell, and the attack deals an extra 5d8 fire damage and 5d8 necrotic damage to the target. Furthermore, the target must make a Charisma saving throw. If the target fails this save, it is transported to a random location in hell. A creature so transported must find its own way back to your current plane of existence.