Implemented Features:
Slimy Spell Book
A new spellbook made from pouring Enderslime onto an Enchanted Spell Book. Comes with 5 upgrade slots, intended for elemental orb upgrades. Future plans for this include modifiers that increase the number of spell slots.
Encyclopedic
New slotless modifier exclusive to the Slimy Spell Book that allows you to use it as an encyclopedia. More Slimy Spell Book-exclusive abilities may come in the future.
Imbued
Tool ability that grants an imbue slot. Additionally, Tinkers' swords and chestplates start with an imbue slot.
Squid Ink
Made from melting down Ink Sacs, and is used in crafting Common Ink, allowing the various inks to be made from scratch.
And various bugfixes!
Two new materials: Exilite and Arcane Cloth
Exilite's traits are Antimagic (damage against magic wielders) and Spell Protection on weapons and armor respectively (Spell Prot can also be added to armor with Exilite reinforcements).
Arcane Cloth's trait is Spellbound, which grants +10% general spell power.
Also adds some more recipes.