Corruption

You pulse corruption into the vitality of one creature you can see in range. The target must succeed on a Constitution saving throw or take 1d8 necrotic damage and deal half damage with the next weapon attack it hits with until the end of your next turn.

This spell’s damage increases by 1d8 when you reach 5th level (2d8), 11th level (3d8), and 17th level (4d8).