lava cows!!!

I think it would be a good idea to add a new passive mob to the nether so then I thought of lava cows. they would be like normal cows but spawn in small heards in and around lava lakes and seas in the nether and you could milk them to get lava. They should look like normal cows (shape wise) but look like they were made of lava and instead of white patches there would be patches of obsidian. They should be passive but if you touch them you get bunt. I think they should be breedable with items such as nether wart, crimson fungus or blaze powder and drop cooked beef (as they are cows). water should damage them but lava and fire shouldn't.

I think it would be a good idea as it would make it easier to get lava buckets because if you took one back to a base you could use it to get an infinite lava source and you wouldn't have to travel long ways to only fill up a few buckets of lava. because of this making things such as bases with features such as lava motes or getting lava to use for smelting  would be a lot easier on survival mode and I think this would improve the game.

I hope you think this is a good idea and that one day these mobs will exist on Minecraft

thank you for reading