End mini boss

Can we add a ender boss that can dance through the palace in the middle of the void? And she can summon a musicians that dropped cool instruments like piano,flute,etc but only 4 of them, and then in the half of its health it's will be her final dance which is she will spin up and while she doing that there's a particles that can damage you through your armor and when it finally killed it will drop her core which can be used to craft mystic items, there's no need to worry about where to place it because just like I said, there's a palace in the middle of the void and you can hear her humming miles blocks away. I suggest this because the end it's like literally like, dragon----end city----and then there's no more, and more likely I'm hoping for some mystic items like a ender pearl thing but you can store a tamed/pet mob in there but if you throw it it will pop up and summon your pet that you stored but the item is no more so you will need a stack of it, like a Pokemon I guess? and so much more (no need to be many) mystic that I want to find to Minecraft for easy and clutching item for better experience in the game. Aside from that, mini boss, her name will suit as enderrisa. so that's it! I hope you will see this minecraft.