Smallville: Season 4, Episode 7

4 - 7: Jinx

Chloe is drawn into an underground gambling ring at school run by foreign exchange student Mikhail Mxyzptlk and loses her savings on a football game after Mxyzptlk uses his powers to control all the players -- including Clark. When Chloe discovers Mxyzptlk's secret, he kidnaps her and threatens to kill her unless Clark throws the championship game. Meanwhile, Lex threatens Mxyzptlk with deportation unless he uses his powers for Lex's benefit.