Corruption

The target upon being hit must take a DC 15 WIS.  Upon success, the target takes 10 (1d10+5) necrotic damage. Upon a failure, The target takes 3 (1d4+1) necrotic damage every turn until death. Upon death, the target's INT, WIS, and, CHA scores all set to 1 and, they become a mind slave to the caster. The caster can only have as many mind slaves equal to his own level. (A lvl 10 player can only have 10 slaves) Upon exceeding that limitation, one of their previous slaves disintegrates at random.