The Champions' Guild Dungeon is one of the most dangerous dungeons of RuneScape. It is full of level 265 yellow dragons, but the dungeon is still popular because the Master Dragon (north-west of the map) drops Drunken claws. This weapon is extremely rare and has the same stats as Dragon claws. Also if a player enters the dungeon during the Dragon Slayer part 2 quest then they may fight the powerful Skeletal Elvarg.
Champions' Guild Dungeon