My reason for suggesting this is that we know from both the bible and ancient historians that learning party tricks was essential to all those making a career change from carpenter to rebel and prophet .... Fraud by modern faith healers is a serious issue too.
My bolding.
Agreed. I've seen party tricks in church with my own eyes - the old uneven-leg-length fixed on stage with emotional music playing in the background trick. Many people were "saved" that day - Pastor Ray McCauley reaped a great ongoing financial reward

And also the simple trick of backing the winners and shunning the losers. We were shunned after the prayer group failed to cure my girlfriend's father's colon cancer. People who went into remission were embraced as "proof" of the power of faith.
No rebel prophet would be considered without a few magic tricks. There were a lot of people similar to Jesus around.
Maybe, but I think this could be giving Jesus too much credit
It's far easier to write about Harry Potter than for somebody to actually perform like Harry Potter.
Some educated Greeks with a message writing a whole life-time after Jesus died would have had no trouble spinning the incredible yarn based on the threads of oral midrash floating around amongst a small rebel cult of early Christians tired of complying with the outdated, inexplicable, and complex rigors of the old Jewish religion.
The simpler explanation is that the miracles were just a product of oral transmission errors, exaggeration, and make-believe to suit a particular story line.