If you’ve played the game you know what I’m talking about right!
I think it would be pretty cool to have a time trial mode for all stages in Seasons 1 and 2 where you try to clear the stage by a certain time to get various rewards.
Eg. If you clear S1 8-7 in 20 seconds you get the Bronze reward which is 1 Atlantis coin
In 18.5 seconds you get the silver reward which is 2 Atlantis coins
In 15 seconds you get the Gold award, for 3 Atlantis coins.
In 11 seconds you get the Platinum reward of 5 Atlantis coins.
Or as @myopia kindly suggested, completion of stage in a certain number of moves. Eg 9 moves for Platinum
And there might be a leaderboard.
I think this would encourage replayability, a new take on the utility of heroes that specialise in farming or speed and bragging rights across the forum.