He's not unique though. Quite a few people are on record for performing miracles in front of large audiences. Seemed like it was all the rage around this time period.

Vespasian apparently healed blind people in Alexandria. Apollonius of Tyana had a very colourful life performing all kinds of magic. Honi the Circle Maker was bringing the rain over in Judea.

Must've been something in the water other than lead!