Minecraft's latest update, Mounts of Mayhem, introduces the Nautilus mob for underwater navigation, alleviating oxygen concerns but introducing dangers from hostile mobs. The full version is expected by year-end, with a beta available now. Nautilus armor, essential for protecting the Nautilus during underwater explorations, comes in five types: Copper (4 shield points), Iron (5 shield points), Gold (7 shield points), Diamond (11 shield points), and Netherite (19 shield points plus Knockback Resistance). Nautilus armor cannot be crafted and can be found in buried treasure, ocean ruins chests, and shipwreck chests. Players can equip the armor by right-clicking on the Nautilus while holding it, which displays shield points above the Nautilus's health bar.