Portal on the End to the Ashen Dimension

A portal that could only be opened from the end, and would leave to a new dimension that would look like the overworld but everything would be in shades of black and gray, like some kind of Ashen world, and everything beyond twenty blocks would look black, you would need to craft special torches with glow stones, to be able to see further away. There would also be big villages and cities with ashen mummified villagers or steves and alexes that you would be able to trade with using lots of different items of much better quality than villagers on the overworld, but also more expensive, costing soul stones instead of emmeralds. It would be easy to get lost and die, but due to that reason it would also contain plenty of rewards, there would also be corruption and wardens, like in The Great Dark.