[KHM] Implemented Draugr's Helm (#7393)

* [KHM] Implemented Draugr's Helm

* Implemented CreateTokenAttachSourceEffect and refactored existing cards to use it

Mage/src/main/java/mage/abilities/effects/common/CreateTokenAttachSourceEffect.java

@@ -0,0 +1,39 @@
+package mage.abilities.effects.common;
+
+import mage.abilities.Ability;
+import mage.game.Game;
+import mage.game.permanent.Permanent;
+import mage.game.permanent.token.Token;
+
+/**
+ *
+ * @author weirddan455
+ */
+public class CreateTokenAttachSourceEffect extends CreateTokenEffect {
+
+    public CreateTokenAttachSourceEffect(Token token) {
+        super(token);
+        setText();
+        staticText = staticText.concat(", then attach {this} to it");
+    }
+
+    private CreateTokenAttachSourceEffect(final CreateTokenAttachSourceEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public CreateTokenAttachSourceEffect copy() {
+        return new CreateTokenAttachSourceEffect(this);
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        super.apply(game, source);
+        Permanent token = game.getPermanent(this.getLastAddedTokenId());
+        if (token != null) {
+            token.addAttachment(source.getSourceId(), source, game);
+            return true;
+        }
+        return false;
+    }
+}

Mage/src/main/java/mage/abilities/effects/common/CreateTokenEffect.java

@@ -111,7 +111,7 @@ public class CreateTokenEffect extends OneShotEffect {
         }
     }
 
-    private void setText() {
+    void setText() {
         StringBuilder sb = new StringBuilder("create ");
         if (amount.toString().equals("1")) {
             sb.append("a ");