Quests for evolution chards
In my opinion, I think that adding a new game mode in the leaderboard as a 2 vs 2 game mode is classified so that there is consistency between players. This mode will bring a lot of new players to try this event because each person will tell his friend about this event, which will increase the number of downloads of the game.
I think that, you should add a new champion such as a, Dragon like in clash of clans
thats a good idea