He is a selfish and mostly rude dude. He is not as smart as he thinks he is, for he often takes friend's ideas as his own. He is a bit of a daredevil but also mostly hardheaded and stubborn as well. He won't do anything for anybody unless he gets something out of it in return. He has a lot of pride and will never admit that he was wrong about anything. Because of a bad first meeting between Tanner and another male Gladion, both of them are quite dominant and both couldn't get along from the first place it has lead to some tention between them that has gone even worse for everytime they meet and now they have become enemies and gets upset everytime they bump into or see each other.