Hey everyone,
This datapack was designed to make echo shards, swift sneak books, music disc fragments and Alay renewable. I made this datapack because of the limited amounts of items compared to the number of players on my private server. For a more detailed list of what this datapack changes/adds, please see below.

Fishing:

Any body of water in the deep dark biome now includes a separate junk and treasure loot table for fishing. The chance of catching fish when fishing in the deep dark has also been halved.

  Deep Dark Junk Loot Table:

• Candle
  
• Soul Torch
• Soul Lantern
• Bone
• Bone Meal
• Damaged Wooden Hoe
• Damaged Stone Hoe

  Deep Dark Treasure Loot Table:

• Echo Shard
• Amethyst Shard
• Music Disc Fragment 5
• Music Disc 5
• Damaged Enchanted Wooden Hoe
• Damaged Enchanted Stone Hoe
• Damaged Enchanted Iron Hoe
• Swift Sneak Book
• Damaged Enchanted Iron Leggings (Swift Sneak)

Mob Drops:

Vex now have a 20% chance to drop a single Alay spawn egg when killed by a player. Each level of looting on your weapon adds 10% to the chance of a vex dropping an Alay spawn egg.

Crafting Recipe:

2x Echo shards can be crafted by combining 4 blocks of sculk with 1 amethyst shard. The recipe will be unlocked when the player picks up a block of sculk.



I hope this datapack is able to be of use to everyone who finds themselves stuck on trying to get these items without having to travel and dig thousands of blocks to get multiple ancient cities. If Mojang do make these items renewable, I'll fix/change the datapack as needed.