You find this beast in the wilderness north of coal mining spot (level 8-10)Then you go directly north past chaos dwarves then when u hit level 41wilder, take a right till you a reach a gate with four lessers in it with aladder.
Gold:
Min0 - Max3000
Loot:
Always: Dragon Bones, ARMOUR: Left half of the dragon shield, Dragon Medium Helmet, Adamantite Plate Mail Body, Rune legs, Rune Kite Shield, Rune square Shield, WEAPONS: Rune Spear, Rune 2 handed sword, Rune battle axe, Rune long sword, Rune hatchet, Adamantite hatchet, Mithril Battle axe, RUNES: 70 air runes, 10 blood runes, 70 fire runes, 5 death runes, 10 law runes, 45 law runes, 35 death runes, ITEMS: 310 Bronze - 690 iron arrows, Rune bar, Adamantite bar , 20 silver certs, 20 yew log certs, 20 iron ore certs, 20 coal certs, ruby amulet of strength, gems, Half key, oyster, 4 cooked shark, Dragonstone gem