Ender eyes crafting and new item for ancient cities

Ancient cities shouldn't be just a optional adventure. What about to change Ender's eye crafting and add new resource into ancient cities lootable what need to be found to craft ender eyes. this will change game playthrough and make the game re-new, re-vived for old players. and interesting for new players. 

In this way, the player will notice more and play ancient cities that you have put a lot of work into.

this change will definitely affect the game time and therefore the player will be better prepared and will have a reason to explore more and get new armor and enchants.

The End dimension and Ender dragon boss will become more end game feature and the game playtime will increase. it will also change the speedrun scene. This is just a decent feature that is added in a day or two. but it will change everything to always and to a new beginning and a better one! 

Ender eyes open a gate to a dimension. Warden perceives according to selections and looks a bit "Endernic". so it would easily make sense to lore.