Finish adding Dreamborn Muse

Mage/src/mage/abilities/dynamicvalue/common/CardsInTargetPlayerHandCount.java

@@ -0,0 +1,31 @@
+package mage.abilities.dynamicvalue.common;
+
+import mage.abilities.Ability;
+import mage.abilities.dynamicvalue.DynamicValue;
+import mage.abilities.effects.Effect;
+import mage.game.Game;
+import mage.players.Player;
+
+/**
+ *
+ * @author cbrianhill
+ */
+public class CardsInTargetPlayerHandCount implements DynamicValue {
+
+    @Override
+    public int calculate(Game game, Ability sourceAbility, Effect effect) {
+        Player player = game.getPlayer(effect.getTargetPointer().getFirst(game, sourceAbility));
+        return player.getHand().size();
+    }
+
+    @Override
+    public DynamicValue copy() {
+        return new CardsInTargetPlayerHandCount();
+    }
+
+    @Override
+    public String getMessage() {
+        return "cards in target player's hand";
+    }
+    
+}