implement [MH3] Herigast, Erupting Nullkite

Mage/src/main/java/mage/abilities/costs/common/ExileHandCost.java

@@ -0,0 +1,49 @@
+package mage.abilities.costs.common;
+
+import mage.abilities.Ability;
+import mage.abilities.costs.Cost;
+import mage.abilities.costs.CostImpl;
+import mage.constants.Zone;
+import mage.game.Game;
+import mage.players.Player;
+
+import java.util.UUID;
+
+/**
+ * @author xenohedron
+ */
+public class ExileHandCost extends CostImpl {
+
+    public ExileHandCost() {
+    }
+
+    private ExileHandCost(final ExileHandCost cost) {
+        super(cost);
+    }
+
+    @Override
+    public ExileHandCost copy() {
+        return new ExileHandCost(this);
+    }
+
+    @Override
+    public boolean canPay(Ability ability, Ability source, UUID controllerId, Game game) {
+        return true;
+    }
+
+    @Override
+    public boolean pay(Ability ability, Game game, Ability source, UUID controllerId, boolean noMana, Cost costToPay) {
+        Player player = game.getPlayer(controllerId);
+        if (player == null) {
+            return paid;
+        }
+        player.moveCards(player.getHand(), Zone.EXILED, source, game);
+        paid = true;
+        return paid;
+    }
+
+    @Override
+    public String getText() {
+        return "exile your hand";
+    }
+}