ender egg hatching

I think if you are going to make the egg into a pet for the player maybe it should never have a full adult stage like the boss Perhaps it could act as a very low tier elytra You'd be able to carry it on your back by shift clicking And unequip it by shifting It would not take up a armour slot Having it equipped would Allow For a very short duration of slow falling It could also assist the player by providing a jump boost allowing the player to scale two blocks It could also add lingering effect to any arrows you shoot by breathing onto the arrow But in order to hatch it perhaps you have to find something hot enough to hatch it in the nether A biome you can only enter with a enhanced fire resistance potion using dragons breath or a new drop from the ender dragon like a scale This biome would contain a block that's can't be mined Or doesn't function outside the nether and requiring a netherite pick to pickup By placing the egg on this block it will heat up the egg and allow it to hatch I also think the ender dragon baby should not be killed but instead injured It lays on the ground firing into the air to alert the owner it needs help It could also have a glow effect Maybe you could heal it by setting up a structure in the over world using end crystals to heal it You'd need to carry it back to the structure to heal it While injured it doesn't provide any benefits You could show how low it's health is by having splayed out wings and lowered head