The Law of Ueki, Volume 15 - Tsubasa Fukuchi

A group of powerful beings called tenkaijin are holding a special tournament. The rules of the game--each tenkaijin selects a kid in junior high to be his champion and grants him a special power. Every time they win a battle, they gain a new ability. The ultimate winner of the tournament is granted any power of his choosing, and the tenkajin who he represents succeeds in becoming the next god. Kosuke Ueki has been chosen to fight in the tournament. His special power--the ability to turn garbage into trees.
Level Two!Team Ueki has faced some tough teams in the third round...but a team made up entirely of Celestials? Mori and her irresistible spectacles are helpless against Kill Norton, who boasts a genius-level IQ and glasses of his own. And Sano is already injured going into his match with Barrow, whose power remains a mystery. But the worst is yet to come. How did Ueki suddenly drop down to zero stars?
A group powerful beings called tenkaijin are holding a special tournament. The rules of the game--each tenkaijin selects a kid in junior high to be his champion and grants him a special power. The kids take each other on in heated battle, but if they hurt innocent bystanders, then they lose one of their natural-given abilities. Every time they win a battle, they gain a new ability. The ultimate winner of the tournament is granted any power of his choosing, and the tenkajin who he represents succeeds in becoming the next god. Kosuke Ueki has been chosen to fight in the tournament. His special power--the ability to turn garbage into trees.