Redundmancy
Like redundancy but involving magic. A redundant magic spell like turning a fork into a knife for two seconds then back into a fork so the spell is really quite useless and redundant. Redundant Necromancy would be another example whereby the spell turns a dead being living but then dead again.
Sabrina the teenage witch; her magic is often redundmancy as it really doesnt serve her any good anyway, better if she didn't use it tbh. Then they could rename the show to Sabrina the Normal Teenage Girl. I'd prefer to watch that one