This papercraft is Volibear, the Thunder's Roar is a champion in the game League of Legends, the paper model was created by portaldragon. There are 397 pieces on 12 pages. When completed the body will be about 11 inches tall and 9 inches wide. There is also a simple version on the site available.
You can download this papercraft template here: League of Legends - Volibear Free Papercraft Download