S4, E7: Chloe becomes entangled in an underground gambling ring at school run by foreign exchange student Mikail Mxyzptlk (TRENT FORD - "The West Wing") who uses his powers to control all of the football players--including Clark--during a game. When Chloe discovers Mxyzptlk's secret, he kidnaps her and threatens to kill her unless Clark purposely makes his team lose the championship game. Meanwhile, Lex threatens Mxyzptlk with deportation unless he uses his powers for Lex's benefit.