You must have finished While Guthix Sleeps
and must have a Bullseye lantern before you go underground in Lumbridge
. They use protection prayers which will switch every 290 to 300 life points lost. They also use every type of attack style: Melee, Ranged, and Magic. Darklight (special or not) is the only known weapon that is capable of weakening the demon by temporarily removing its special shield. With shield all weapons hit very low on it. Without shield all forms of attack can do their normal maximum hits. Dragon claws are dropped approximately once in 150 kills.
It is advised that you bring several people of different attack types such as Melee, Ranged, and Magic to kill the demon faster. When soloing it, bring Ruby bolts(e) and your best melee equipment to kill the demon. Also try Slayer darts and Diamond bolts(e). Since other demons can attack you at any time, it is highly advised that you bring a Ring of life.
Lucien must be incredibly powerful if he can bind such demons to his will.
Ruined dragon armour lump, Ruined dragon armour shard, Ruined dragon armour slice, Dragon claws, Dragon limbs, Starved ancient effigy, Clue scroll (elite)
Infernal ashes (100%), Coins (3000-12000), Rune longsword, Rune sq shield, Rune chainbody, Rune 2h sword, Rune battleaxe, Dragon med helm, noted Diamonds (3-5), Super defence potion (3) (3-6), Prayer potion (3) (2-3), Steel arrows (150), Sharks (9-12), Seeds, Grimy herbs, Rune med helm, Rune mace, Rune sword, Adamant battleaxe, Adamant bars (3-5), Adamantite ore (4), Fire talisman (2-5), Blood rune (13-20), Death rune (23-36), Lava rune (20-34), Law rune (18-24), Gold charm (3), Green charm (3), Crimson charm (3), Blue charm (3), Nature rune (67), Adamant javelin (20)