Erik's Enfeeblement

You sap the life-force of a foe, turning its strength into weakness. Make a ranged spell attack against a creature within range. On a hit, the target deals only half damage with weapon attacks that use Strength until the spell ends.

At the end of each of its turns turns, a creature affected by this spell can make a Constitution saving throw. On a success, the spell ends for it. 

At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher, you can target one additional creature for each level above second.