What I would Like to be Added in Minecraft

 Well, what I would like is a chair. What can it do? Even if hunger bar is low it can increase our health(faster than normal) when we sit on it. And some new ores. For example, Ruby, Platinum, etc. I even have an idea about a funny ore called TNT ore. It will be rare. It can only be in Hard difficulty. Mine it and it blasts at a radius of 7 to 10 blocks. It can resemble stone and the ore will be the same colour as the stone(with faint outlines). And some sort of Rainbow ore, which will drop one each of all ores. It can be ultra-rare. I would like a nether dragon, which lives on a small island in the lava pool, with an obsidian tower and a crystal at the top, which gives it health. The dragon and its island will be very rare. It'll shoot fireballs and fire breath. Netherite Pickaxe can break the crystal. The dragon will attack the player if the player is near the island. The boss can be there in Hard difficulty. Of course, lava and ghasts are there, so it might be harder(In my world, there are no ghasts in the nether!). Please comment what you would like in Minecraft! Thank you!