add spells intro

spells.tex

 \chapter[Chamber of Magic]{Magic}
 
+\begin{multicols}{2}
+
+\input{config/rules/spells.tex}
+
+\noindent
+Miracle-workers transform mana into change.
+With each new sphere of magic, they can contort and shape more of the world.
+
+Spells often gain bonuses for magical ingredients.
+The proper process can turn griffin features into a powerful dust which adds one \gls{mp} of Air.
+Using such an item means a caster with Air 2 can cast as if they had Air 3 and add 1 \gls{mp} to the spell.
+
+So-called `low spheres' make up the basic elements of the world -- Fire, Air, Fate, et c.
+Combining the right pair of low spheres creates one of the high spheres, such as Light or Death.
+The mage can cast any spells from these domains equal to the highest of the lower spheres which comprise the spell.
+
+A mage with griffin-feather dust and Fate 1 could combine the two into a 1 \gls{mp} spell from the Death sphere, without having to spend \pgls{mp}.
+Or a mage with Fate 2 could spend 1 \gls{mp} while using the dust, and cast a spell from the Death sphere with a cost of 2.
+
+\end{multicols}
+
 \section{First Level Spells}
 
 \begin{multicols}{2}