With Tournament Point Boosters, you can drastically increase your Tournament Points income, increasing your ranking position and earning fatter rewards at the end of the tournament.
You can increase your point income by 100% and 200%. Each booster has a countdown until it expires, which you can extend for coins. Keep in mind that negative points are also increased during a boost.
With boosters you can avoid being demoted or even move up a league at the end of the tournament.
You can purchase Tournament Point Boosters from the Tournament screen.