* Additional costs - added support of X costs on free cast (example: Kicker X, see Thieving Skydiver and Etali, Primal Storm combo);

* As an additional cost discard X cards - fixed wrong text (example: Channeled Force, Firestorm);

Mage/src/main/java/mage/abilities/costs/VariableCost.java

@@ -64,4 +64,8 @@ public interface VariableCost {
      * @return
      */
     Cost getFixedCostsFromAnnouncedValue(int xValue);
+
+    VariableCostType getCostType();
+
+    void setCostType(VariableCostType costType);
 }