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/src/MTGAbility.cpp

@@ -2532,6 +2532,16 @@ MTGAbility * AbilityFactory::parseMagicLine(string s, int id, Spell * spell, MTG
         return a;
     }
 
+    //Serum Powder
+    found = s.find("serumpowder");
+    if (found != string::npos)
+    {
+        Targetable * t = spell? spell->getNextTarget() : NULL;
+        MTGAbility * a = NEW AAMulligan(observer, id, card, t, NULL, who);
+        a->oneShot = 1;
+        return a;
+    }
+
     //Remove Mana from ManaPool
     vector<string> splitRemove = parseBetween(s, "removemana(", ")");
     if (splitRemove.size())