When leveling golden dragons they felt weaker than their high tiger counter parts. Using -petdmg the following was discovered.
Magical damage :(fire breath) dragons do 16-37 dmg (This did not change from level 9 to level 29)
Physical dmg: At level 9 Golden Dragons did between 13-43 dmg per physical attack. This seems to scale with level as at level 26, they were doing between 25-65 per attack. Now at level 29 they seem to do between 30-70dmg per attack.