Deep dark dimension idea

I have an idea for the functionality of the ancient city "portal". You would open it, by interacting with the reinforced deepslate with a warden heart, a new item dropped by the warden. It would lead to an arena, a deep dark arena. in this arena you wold light on fire all netherrack blocks found on the three statues of the Minecraft gods, Action Knowledge and Foresight. After that the portal closes. A skeleton necromancer will spawn, which will be a boss. He throws daggers, which can be caught mid-air interacting with them, giving it to the player as an item, as a melee attack it will use a "corrupted sword", which is a iron sword with red decals which will effect the player with corruption one, which will slowly damage the player alongside inverting the controls of the player. Similarly, the necromancer would summon little floating sculk creatures with a power, to drag the player closer to the necromancer, they will also apply darkness to the player. When the necromancer dies, he will drop his sword, 5-10 daggers and a key to exit the arena, also the portal to the overworld opens back up. The key leads to a new sculk dimension but there won`t be any shreikers because wardens are only to protect the city. The dimension will have ancient ruins on floating islands. also the update could add these: https://feedback.minecraft.net/hc/en-us/community/posts/33415931334541-Grindstone-update-idea  and https://feedback.minecraft.net/hc/en-us/community/posts/33416295005325-Item-effects