Falcon

Make falcons that if you hit they will attack you by swooping down from the skies make them giant and the attack does 2 hearts of damage but if tamed (you tame them by giving them fish) they can be saddled with a special saddle which you can craft on a crafting table by putting two copper ingots on the right and left top corners a leather in between them a rope in the very middle of the table and a gold ingots on in the middle bottom. They also have a nether and ocean variant the nether one is a phoenix that can breath fire and the water variant is a sea dragon that can swim and glide if it jumps out of the water and it also has the ability to give you water breathing if you are riding it it is tamed by giving it mutton. Also the phoenix is tamed by giving it a gold feather which can be crafted the same way as a gold dandelion but a feather instead of the dandelion.