You place a curse on a creature that you can see within range. Until the spell ends, choose one ability when you cast the spell. The target has Disadvantage on ability checks made with the chosen ability.

If the target drops to 0 Hit Points before this spell ends, it activates Necrotic Pulse.

The number of creatures this spell can target increases when you reach certain levels. At 5th level, the spell targets an extra creature for a maximum of two; At 11th level (3) and 17th level (4).