Spellblades and Such

Added the Deathchill Tome, a Frost book centered upon freezing yourself and others to become tankier and do more damage!

Primordial set pieces now can be crafted using items called Threads of Hope like typical armor, which can be salvaged from existing Primordial set pieces by crafting with shears. One set piece will always yield 3 Threads of Hope. It is now a lot easier to get a full Primordial set!

Primordial set pieces are now repaired by Threads of Hope instead of wool.

Changed description of Massacre to reflect damage scaling with attack speed