You call out a necromantic chant to cause wounds to close up. The creature whose wounds triggered the spell has the damage reduced by 2d4 hit points (to a maximum of 0 damage) and the target gains advantage on any saving throws against conditions or effects due to the wound (including poison or disease). The target automatically succeeds any save against these conditions if the wound deals no damage. 

At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher, the damage is reduced by an additional 1d4 per slot level used above 2nd.