Following April 30,2013, Jagex has implemented a new update to the 4 God Wars Dungeon Bosses, Hard Mode. It is significantly much more stronger than the current bosses.
New Special Attack:
General Graardor will hit the floor, causing the ceiling to drop rocks. Similar to the events in the World Wakes Quest.
General Graardor will also go into defensive mode where all damage is reflected and it is doubled. Players are adviced to run away from him when he clutches his hand to his body.