Warden's new dimension

(please read all) After defeating the warden, he drops the heart of darkness, which would serve to activate the warden's ruins portal and take him to the new dimension: otherside in this dimension we would have several new blocks and some already existing, there would be 3 new biomes in this dimension, and structures like the temple of the depths, which would have many treasures but traps that if we fall, a warden would appear other structure could be the pit of darkness that would have a secret passage in the middle that would open several treasures and scattered diamonds, but a mini boss would appear, the stalker, that would deal a lot of damage, and would spawn minions that alone are weak, but together they do a lot of damage. defeating the stalker, he would drop a new ore that would make it possible to make new armor and warden tools also joining this ore with elytra would make it have an armor resistance as well as the chest this new dimension can have peaceful mobs and some challenges, the rest of the dimension I leave to Mojang's imagination!