Supercell Games has announced the start of a new League season in Clash of Clans, while detailing the bonus loot you may receive for your participation.
According to the developer, a loot bonus will be given after each successful attack, noting that you need to obtain at least a one-star victory to be awarded the loot. The higher the league you're in, the higher the bonus loot you'll receive.
Unfortunately, bonus loot will not be awarded if the victory is the first one of the season or if a battle was a revenge.