Interpret

Nautilus can spawn in groups in Deep Ocean biomes. They can be fed any fish and then saddled to maneuver through water. Holding the jump key with a Nautilus will charge the Nautilus through water. When ridden, the Breath of the Nautilus will freeze the rider's oxygen and increase mining speed underwater. Nautilus Armor can be crafted with Prismarine Shards and a material.

Zautilus are the hostile variant of the Nautilus. They can use a charge attack, deadly in large groups.

Spears have an extra block of reach. Spears deal damage based on the user and the target's velocity.

Broadswords have high damage but attack cooldown. Broadswords can negate a percentage of damage based on their material, decreasing attack cooldown. This allows for high-damage attacks to occur in quick succession.

Shields now block an amount of damage, with base blocking 5 damage.
Buckler - 4, no movement slowdown
Cryst - 6, +2 Armor
Scrapper - 7, +4 Armor

Horse Armor can now be enchanted with all helmet, chestplate, and leggings enchantments, as well as some brand new enchants.
Cliff Step increases the step height of horses. Accelerate disables jumping, exchanged for an unlimited increase in speed per key hold. Wind Walker disables fall damage and decreases gravity, allowing horses to jump in the air.

Horseshoes are a new item that add increased speed to Horses, Donkeys, Mules, Llamas, and Camels when equipped.

Wolf Armor has received new tiers, from Copper and Leather to Netherite.

The Husking Camel attacks all mobs not including its riders, dropping a random item from a target's loot table. They can do a charge attack and damage colliding mobs when ridden.
The Wither Skeleton Horse attacks players in groups of 3 to 4. They can be pacified with Nether Wart. When ridden, they can do a double jump!

Banners can now be attached on Horses, Minecarts, and Boats.