The Sky Hunter - A new overworld boss (And a tamable flying mob)

The Sky hunter would be a new boss in the overworld. It could be summoned by a sky banner on a podium within a temple on a mountain or sky island. A sky banner could only be obtained from ancient cities. The sky hunter would be a large and bird with very colorful feathers. Once summoned, it could swoop down on players and attack them or pick them up and carry them into the sky before dropping them from a high height. Once defeated, the Sky Hunter would drop five of its feathers and a saddle for a new flying mob. The feathers could be attached to arrows to make them deal more damage. The new flying mob would have limited stamina, so it can only fly a certain amount before needing to rest. The Sky hunter could also drop another item, the enchanted book of pressure resistance. With this enchantment on their armor, this could enable players to dive to the deep sea. Without this enchantment, players would not be able to survive in the deep sea.