Son Goku Genkidama

"Remember that the Spirit Ball is a martial arts discipline that allows you to borrow energy from grass and trees, from people and animals, from inanimate objects and the atmosphere... And then to concentrate them and release them. If you can draw so much destructive power from a ball made on this small planet... ...Imagine what you can do with a Spirit Ball formed on Earth! If you can also learn to tap into the astounding powers of the Sun... Well. Just be careful. Or you may destroy the very planet you're trying to protect!"