Grimoire Page on how to create the Runic Altar
It has Iron Ore being smelting. (This is not a natural spawn, just placed here)
Research Table
If you manage to find the lost Page on Basic Wards you can unlock the recipe and ability to craft the Insomnia Ward, which sets fire to most hostile creatures
Custom chunk generation to make the nether more interesting
If you have found the Demonic Mobs Forgotten Page in one of the nether chests, you can unlock this page.
New Grimoire Layout
First Page you see, The Compendium.
Prowlers naturally Spawn in the nether in this photo there is also a holmium tree, which can be used to create holmium armor, however, you need a hellforge to melt the metal logs, as a normal forge won't be hot enough.
Mines in a 5x5 area, once it's out of durability, it turns into a Demonic Runic Pickaxe, which mines in a 3x3, if this is broken it's gone for good, though, you can then re-infuse the pickaxe at any point to bring it back to an infused version.