Recently, I have thought of a new event on how to get a monster. For example, say there was an event for Rador. It would last for 24 hours. This is how it would go:

There would be battles. If you won, you would fight the next one. If you lose, you wait 2 hours. The roulette would have 20 cells of the monster, 10, and 5 cells of that element available. The roulette is the only reward. This is how it would work:

Battle One:
Rules: Nature.
The battle would be with three nature monsters against three Radors.
Battle Two:
Rules: Epic.
The battle would be with three epic monsters against three Radors.
Battle Three:
Rules: Team Wars.
The battle would be with three team war monsters against three Radors.
Battle Four:
The battle would be with three (given) Radors against three water legendaries. (Random)
Battle Five:
The battle would be with three (given) Radors against three Artifact legendaries. (Random)
Battle Six:
The battle would be with three (given) Radors against all versions of Hydratila.
Battle Seven:
The battle would be with three monsters against a Rador with 100k life.
Battle Eight:
The battle would be with three monsters against a Rador with 250k life.
Battle Nine:
The battle would be with three monsters against a Rador with 500k life.
Battle Ten:
The battle would be with three monsters against a Rador with permanent Double Damage. The Rador has 100k life and has the first turn, no matter the speed. All allies start with total damage reduction. Once this battle is beaten, the roulette has a Rador Egg on all nine spots. You can opt to go again for the price of a Rador Egg. The rules would add Rank 1 requirements. The reward is a Rank 1 Rador. This can be repeated until rank.