Text (8th/10+errata): 5/5. ; You may have ~this~ assign its combat damage as though it weren't blocked. ; {2}{G}: Regenerate ~this~. [Oracle 2008/01/01]
When assigning combat damage, you choose whether you want to assign all damage to the defending player, or if you want to assign all of it to blocking creatures. [8E FAQ 2003/07/28]
Note - This card was creature type "Beast" until Oracle 2007/10/01, when it became "Rhino Beast".