Luke isn't your typical Lucario. He is very fat and round, with chubby cheeks, what looks like a double chin, a massive, round, soft and jiggly belly, and thicc, wide thighs. He weighs approximately 672 pounds and he's rather self conscious about his weight and size. He is also a big eater, which doesn't help his case. He tries his best to lose weight with proper diet and exercise.