speckle

I have a question, I managed to get shaymin as my Partner Pokemon, But every time I fight a boss or complete a a dungeon he reverts to his land form. Does any one know why this is happening or how to fix it? I just want shaymin to stay in his sky-form the whole game.

Really dumb Question, but I've edited all the portraits for the Pokemon I want, Shaymin. But, now I dont know how to actually load the mod into the ROM