Done

source/module/actors/M5Character.ts

@@ -461,6 +461,7 @@ export class M5Character extends Actor {
 					} else {
 						item.system.equipped = true;
 						data.info.magicUsing = item.system.magicUsing;
+						data.lernKostenZauber = item.system.lernKostenZauber;
 					}
 
 					if (typeof data.info.class === "string") {