diff --git a/rules/spells.tex b/rules/spells.tex
index fc65a98806614abdde2c4978651f893246b5ecb9..b6382389469a9a23552988655db1666514c4d7ca 100644
--- a/rules/spells.tex
+++ b/rules/spells.tex
@@ -1,7 +1,8 @@
 \subsubsection*{Spells}
 \begin{itemize}
   \item
-  Casters can store a number of \glspl{mp} equal to the number of spheres they have times three.
+  To cast a spell, roll Charisma plus the Skill which the spell requires.
+  The spell will state the \gls{tn} and \gls{mp} cost.
   \item
   Casters can spend a number of \glspl{mp} equal to the highest sphere they are using to cast a spell.
   \item