/**
  * getPlaneswalkers.
  *
  * @param cards a {@link java.util.ArrayList} object.
  * @return a {@link java.util.ArrayList} object.
  */
 public static ArrayList<Card> getPlaneswalkers(ArrayList<Card> cards) {
   ArrayList<Card> ret = new ArrayList<Card>();
   for (Card c : cards) {
     if (c.isPlaneswalker() && !c.isArtifact()) ret.add(c);
   }
   return ret;
 }
 /**
  * getNonCreatureArtifacts.
  *
  * @param cards a {@link java.util.ArrayList} object.
  * @return a {@link java.util.ArrayList} object.
  */
 public static ArrayList<Card> getNonCreatureArtifacts(ArrayList<Card> cards) {
   ArrayList<Card> ret = new ArrayList<Card>();
   for (Card c : cards) {
     String name = c.getName();
     if (c.isArtifact()
         && !c.isCreature()
         && !c.isLand()
         && !c.isGlobalEnchantment()
         && !(c.isEquipment() && c.isEquipping())
         && !name.equals("Mox Emerald")
         && !name.equals("Mox Jet")
         && !name.equals("Mox Pearl")
         && !name.equals("Mox Ruby")
         && !name.equals("Mox Sapphire")) ret.add(c);
   }
   return ret;
 }