He seems to have a lot of Healing umph, but all the abilities relating to healing Life points only relate to the starting Life value, so I don't think he's too OP. Had a hilarious game where he was herding the Leper around the board towards the other characters.
https://picasaweb.google.com/lh/photo/OhlajlbISagINqJC9A9zDdMTjNZETYmyPJy0liipFm0?feat=directlink
Used this miniature:
http://www.wampforum.com/VB4/attachment.php?attachmentid=15400&d=1370703198&stc=1
...available from CP Models .