The Battle Gate was the site of a great battle between the Warfang and the Valtheran. A single dragon comes with this set. The major feature are two "pillars" which make up the so called Battle Gate, with arcane runes on them. What it is a gate to is unknown, it may be the last remnants of a castle as other castles, such as Draigar Castle have similar pillars. Or it may be one of the last portals to the Dragon World, having been destroyed after most of the dragons left the human world.