A whole collection of Json Files made to fit in my Skyblock Modpack, contains a whole bunch of recipes and some loot tables, for a proper description:

Some Recipes (all is balanced);

Gravel and Cobblestone can be crafted early game;

Ice can be Crafted from Snow Blocks;

Powder Snow Bucket can be Crafted and smelted into a Water Bucket;

Budding Amethyst can be Crafted;

Calcite and Tuff can be crafted;

Corals can be crafted into and from their Block form;

Sculk Catalyst can be crafted;

Sponge, Heart of the Sea and Prismarine Crystals can be crafted;

Reinforced Deepslate can be crafted;

Stairs now requires Half as much Items to be Crafted;

Stairs can be Converted back to their Block form;

Slabs can be Converted back to their Block form;

And much more!

Loot Tables;

All leaves will have 50% chance of dropping itself when broken, along with it's regular loot;

Living Corals no longer required to be broken using Silk Touch in order to drop;

The Warden will drop Ancient City loot such as,

Echo Shards, Music Disc Fragment, Otherside, Swift Sneak Enchanted Book along with Diamonds and Enchanted Golden Apples;

Prismarine Shard added as Fishing Treasure Loot in stack of 16;

Zombies and Zombified Villagers no longer drop Carrots and Potatoes;

All the Jsons