Opal, an alternative to Netherite

Opal is a resource that is added to diamond armor and tools in the same way netherite tools and armor are created.
Opal is resistant to the void. If any item equipped with it falls into the void it will float up to a Y level of 62 and stay there until it is picked up.
Its stats are +2 knockback resistance and increases the durability of items by 20%

How it is crafted:

• Four potch shards and a chorus fruit in any configuration in a crafting table.

How potch shards are obtained:

• A jellyfish mob spawns below the outer end islands and has a rare chance to spawn with a mob called a barnacle attached to it.
• When the barnacle is removed from the jellyfish using shears, 1-3 potch shards will drop.

More about the Jellyfish:

• The jellyfish is blue-ish-purple in color and is slightly transparent.
• When killed jelly will be dropped, jelly can be crafted into a blue block resembling slime in texture, it sticks to itself and glazed terracotta blocks, and does not stick to any other blocks
• When killed with a barnacle attached, the barnacle will detach and attack the player

More about the barnacle:

• Resembles a lamprey, and is the color or endstone
• Roams the void between the main end island and the outer end islands
• If an unattached barnacle is near a non infected jellyfish, the barnacle will attack and kill the jellyfish rather than attaching to it.
• Has a 15% chance of attaching to the player and causes the hunger status effect. It is removed with poison