The cloud biome

There is a biome in the clouds that you can only get by using Elytra and fireworks and when you get there there are new winged mobs and a new type of tree that looks like an oak tree but you can walk through it but still mine it with a cloud axe made from mining parts of the cloud, plus chests that are ultra dangerous to get to but it is worth it because there is a cloud pet spawn egg that will fly you away from attacking mobs if you have low health and will also electrocute the mob and rain on your crops which will make them grow faster