We know that Jesus Christ existed, but we are not sure if He had powers as recorded in the Bible. I guess he didn't have supernatural skills, it was just the things we know today. For example, the fact that someone died and he brought him back to life would have to be read as resuscitation. That he was condemned to death and the whole way of the cross may be true because his techniques were considered wrong (as was the case with witches) and the resurrection may only be an invention of a poet.