Curse of Death and Decay

You touch a creature, which must succeed on a Wisdom saving throw or become cursed for the duration. Until the curse ends, the target suffers one of the following effects of your choice:  

Death -  The target suffers 1d4 necrotic damage at the start of each of your turn.

Decay - The target’s maximum hit points decreases by 1d8 at the start of each of your turns. 

Using a Higher-Level Spell Slot. When you cast this spell using a spell slot of 2nd level or higher, the amount increases by 1d4 for death and 1d8 for decay per level.