Mon, 03 Apr 2023 22:18:14 -0700. Clash of Clans: Getting 1250 Trophies ; Sat, 04 Apr 2020 13:38:03 -0700. Grow Stone - How to Participate in the Referral Event?
Turns out that you can't win 5 stars in a single battle. The maximum stars per battle is still 3 stars. But the 5 stars bonus is carried over multiple battles.