serum powder code

serum powder second ability...
Any time you could mulligan and Serum Powder is in your hand, you may
exile all the cards from your hand, then draw that many cards.

projects/mtg/include/AllAbilities.h

@@ -5540,6 +5540,17 @@ public:
     AAShuffle * clone() const;
 };
 
+//Mulligan
+class AAMulligan: public ActivatedAbilityTP
+{
+public:
+    AAMulligan(GameObserver* observer, int _id, MTGCardInstance * card, Targetable * _target, ManaCost * _cost = NULL, int who =
+            TargetChooser::UNSET);
+    int resolve();
+    const string getMenuText();
+    AAMulligan * clone() const;
+};
+
 //Remove Mana From ManaPool
 class AARemoveMana: public ActivatedAbilityTP
 {