They're not converting to a 5star system from the 3star system, the max stars available on a base will still be 3.
But if you accumulate 5 total stars in multiplayer battles in a day (e.g., two 2* attacks, and a 1* attack), you'll get an additional amount of bonus loot. I hope they tie this to league, with bigger bonuses being given to those in higher leagues.
It's basically free loot to those who execute a couple winning attacks per day. Not sure if the "milkers" are going to be happy about this.![]()



