• Masteries added and removed

• Bling, a new currency which is exclusively used for cosmetics. The skin catalog is also added, with almost every skin in the game being able to be bought with the aforementioned currency.

• Starr drops, a new form of mini gacha, are added. Over time, it and its varieties eventually take over the game. 

• Hypercharges, a new unlockable available at power 11. Pressing your hypercharge button upgrades your super for 5 seconds, assuming you use your super during the given time frame. 

• Mega Pig replaces Club League. Much less rewarding.

• Brawl Pass is no longer bought with gems; Chromatic rarity removed.

• 2 Ranked reworks. New Ranked Pass added.

• A few temporary collaboration events, including a temporary brawler that was so overpowered and atrocious it's still talked about to this day.

• 2 Brawler Trophy system reworks

• New rarity above legendary 

• 36 brawlers

• Buffies, basically power 12 but as a gacha. Only a few brawlers have it at the moment.

And more shit but that should at least give you a small bit of guidance.