Death by Hiccup

The target must succeed on a constitution saving throw or be affected for one day. The target immediately takes 1d4+spell modifier of bludgeoning damage and 1d6 of necrotic damage, the damage continues to occur each hour. After each hour the target makes a saving throw, upon a success, the spell ends. If the target fails 4 constitution saving throws, the damage increases to 2d4 + spell modifier of bludgeoning damage and 3d6 of necrotic damage.