This is a work in progress mod I decided to make. This will be including void like magic, with possibly a dimension if my friend and I go that far with creating this.
This mod is for version 1.12.2
Currently, there is just a few items and one block. This block is called "Remnant" and is supposed to be a piece of the lost dimension, only known as "The Void." It radiates unknown energy and magical properties. If broken, it drops a shard of its former self, which can be crafted with two other shards and two stone sticks, to make a pickaxe.
Remnant blocks will spawn between 17 and 10 block height. You need a diamond pickaxe to break them. A void temple might be made within the future of this mod.