New harder boss level

A new boss that has 3x as much health as an ender dragon and can respawn end crystles to give it more health and it can summon anny mob for you to fight off. The portal to this new dimension would be located in the end and you have to use a new item that is crafted by 9 eyes of ender sorounding dragons breath and you will need 9 of these because there will be none at the portal