Requirements
55 quest points
Level 25 herblore (Or you can take a greenman's ale)
Level 50 mining (Or you can take dwarven stout +1 to mining)
Level 53 fishing (or 50 and a fishing potion)
Level 53 cooking
A friend from a rival gang
Level 43 prayer is helpful, but not required.
Shield of Arrav quest
Merlin's Crystal
Lost City
Dragon Slayer
Items Required
If you are a member of Black Arm gang, then you will need a friend who belongs to Phoenix gang to help you. The same if you are in the Phoenix gang: you will need the help of a friend in the Black Arm gang. This quest can not be completed without help from a friend in the other gang. You will also need some really good armor, a good weapon, lots of food, about 2000 coins for expenses (possibly more depending on what gang you are in: the Black Arm gang member is required at one point to wear a Black large helmet, Black platemail and Black platelegs as a disguise). You will also need a Harralander herb (see Herblore guide). You will need the Dusty key to get into the Taverly Members Dungeon area to fish for Lava. Also a Dragonfire Shield will help
Reward
Access to the Hero's Guild, ability to buy a Dragon battleaxe and Dragon mace. Attack +2825, Defence +2625, Strength +3025, Hits +2775, Ranged +1525, Cooking +2725, Woodcutting +1875, Firemaking +2725, Smithing +2225, Mining +2575, and Herblore +1825
Quest  Points Reward: 1