To create it, you have to right click a Runic Tenebris Frame with a Dark Nether Star.
This block has been removed in the 1.17.1 version. It will be added back at a later point.
To get it, you need to right click normal Farmland with Arcane Bone Meal. Magical Farmland doubles the quantity of crop drops. Golden Orchids can only grow on this type of Farmland.
You can create a Block Hole by throwing Dark Matter together with Corrupti Dust on the ground. It will attract items and small entities like Arrows or Experience Orbs and delete them. Once it absorbed enough experience points, it will throw out a Xpetrified Orb.
The Edelwood Ladder can be climbed twice as fast as a vanilla Ladder. They are craftable like the vanilla Ladder with Edelwood Sticks and a Edelwood Planks.