Lost Souls of the End

Greetings. Although the End dimension was updated back in 1.9, it still feels kind of empty. So I thought it would be cool if there are more variety. Enjoy reading my garbage ideas. The Lost Soul of the End is a small, dark purple creature with blue eyes and black wings that allow it to fly to the black skies of the End. They are passive at first, but when attacked they will try to kill whoever hurt them. How do they spawn? Well, if you mine a new block that appear near End Cities, there is a small chance that this mob will emerge from them. Once killed, they will drop End Shards, which can be crafted into an Ender Necklace. If you wear it, Endermen, Endermites and even the mighty dragon herself won't dare attack you, ever. So there you have it. My idea to make the End a bit more interesting.