(And no,I do NOT mean Aunt Clara)I mean the OTHER witch characters on the show (Endora,Uncle Arthur,Serena,Brunhilda,Serena,Elspeth's former boss,Carlotta,Dr.Bombay ,etc)get their comeuppance?

All the time! Uncle Arthur played tricks on Endora, and she paid him back; Maurice put Endora in her place a few times; and even Aunt Clara got back at her once or twice. How 'bout when Aunt Clara inherited Endora's powers!