Life Drain (5e Spell)
From D&D Wiki
|Casting time:||1 action|
|Duration:||Concentration, up to 1 minute|
You attempt to drain the life out of a creature within range. The target must make a Constitution saving throw at the start of each of its turns, taking 4d6 necrotic damage on a failed save, or half as much damage on a successful one.
If the target successfully saves three times against this spell, it ends early.
At Higher Levels. When you cast this spell using a spell slot of 5th level or higher, the damage increases by 1d6 for each slot level above 4th.