Testicular Torsion

This spell twists a singular testicle (if it exists) of a creature within 60 feet, causing indescribable agony. The target must succeed a Constitution Saving Throw or be knocked prone and incapacitated. At the end of the affected creature's turn, it may repeat this saving throw, gaining a bonus to the roll equal to the number of rounds since the spell was originally cast. 

At Higher Levels: For each spell level above 1st, you may target one more testicle within range, potentially targeting multiple creatures.