Bahamut

It is a neutral mob that looks like a flying whale that appears at the end, and its appearance rate is extremely low.
This mob is powerful enough to instantly kill a player equipped with Nezalite.
Naturally, it has high physical strength, but it is less than the ender dragon.
However, it is characterized by moving very slowly.
If you have any other good ideas, please let us know in the comments.
Thank you for taking a look at my idea.