Sorry, but you can't get him. It says he is on the pokedex but you can't get him in the game. He would be in mt draken but the tiling of the cave is off and he isn't there. Sorry, I really wanted a bagon when I first played this game, I looked everywhere, I asked people and I looked it up on the internet and I couldn't get him or gible. Sorry to disappoint you, but I don't think you can get a bagon or a gible. There are plenty of other great pokemon in this game though.