How do you sell dragons in dragon ML?

So, I'm curious about this dragon-selling process in dragon ML. Can you elaborate on the steps one would need to take to successfully sell their dragons in this platform? Are there any specific protocols or guidelines that sellers need to adhere to? Are there any fees involved, and if so, how are they calculated? And finally, how does the pricing of dragons work in dragon ML? Is it based on rarity, stats, or something else entirely? I'm eager to learn more about this fascinating aspect of the game.