Indiana became the second state with a law formally legalizing daily fantasy sports after Gov. Mike Pence signed Senate Bill 339 on Thursday. Earlier this month, Virginia became the first state to pass such a law. States have taken vastly different approaches as they try to clarify the murky legality of the games. New York’s attorney general has declared them illegal and the industry’s two largest companies, DraftKings and FanDuel, agreed this week to stop taking bets in the state. In Maryland, a bill would put the question to voters in a November referendum. The Indiana law sets a minimum...