Black beams of negative energy surround Orcus in a 20-foot radius centered on it. Each creature in this area must make a DC 24 Constitution saving throw. On a failure, the target deals only half damage with weapon attacks that use Strength for 1 minute. A weakened target can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success. If a target's saving throw is successful or the effect ends for it, the target is immune to Orcus's Aura of Enfeeblement for the next 24 hours.