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The black stone dragon is the final boss in the Dragonkin Laboratory.

She was created by Kerapac, who implanted black stones onto a dragon from Vicendithas' old batch. The dragon also had a sister dragon; her whereabouts are unknown. The dialogue during the fight and the dragonkin research diary suggest that the black stone implants allowed Xau-Tak to influence her, which corrupted the dragon into her current form. After an accident which saw the destruction of another specimen, Kerapac sealed her away in the laboratory, for fear of her extremely uncontrollable nature.

Drops

100% drops

The black stone dragon has two 100% rolls: one for the unique items (onyx dust, codex, pet, energy) and another for common drops (uncut gems and bolt tips). For clarity, the two tables are separated.

Item Quantity Rarity GE price
Reinforced dragon bonesReinforced dragon bones1Always15,740
Onyx dustOnyx dust10–29Varies[1 1]120,600–349,740
Draconic energyDraconic energy1–110Varies[1 2]207,316–22,804,760
Mutated Barge ability codexMutated Barge ability codex1Very rare[1 3]99,677,811
Inert black stone crystalInert black stone crystal1Varies[1 4]Not sold
Uncut onyxUncut onyx1Rare(1/500)1,277,473
Uncut diamondUncut diamond10–25 (noted)Common(1/2)22,890–57,225
Uncut dragonstoneUncut dragonstone1–10 (noted)Uncommon(3/10)10,770–107,700
Onyx bolt tips 5Onyx bolt tips50–75Uncommon(1/25)392,300–588,450
Hydrix bolt tips 5Hydrix bolt tips50–75Common(1/10)483,350–725,025
Perfect gemstone scalesPerfect gemstone scales1Common(1/10)Not sold
  1. ^ Rolled if the codex, pet and energy drop fails; only in group encounters since solo encounters guarantee draconic energy.
  2. ^ 4-8 guaranteed when defeating the boss in a solo encounter, with a hard cap of 110 energies, with the higher amounts of energy being significantly rarer. In group encounters, there is a 3/10 chance for 1-20 energies, with the higher amounts of energy being significantly rarer. This only drops if the codex or pet drop is not rolled.
  3. ^ Has a drop rate of 1/500 in group and 1/200 in solo encounters. Highest priority in the drop table.
  4. ^ Has a base drop rate of 1/300 (solo encounters) or 1/1,500 (group encounters), with a threshold of 60 for solo encounters and 300 for group encounters. Rolled if the codex drop fails.

Main drops

Item Quantity Rarity GE price
Coins 1000Coins250–3,700Common250–3,700
Laboratory relic (common)Laboratory relic (common)1CommonNot sold
Laboratory relic (uncommon)Laboratory relic (uncommon)1UncommonNot sold
Laboratory relic (rare)Laboratory relic (rare)1Very rareNot sold
LogsLogs1Uncommon375
Raw swordfishRaw swordfish1Uncommon238
Weapon poison++ (1)Weapon poison++ (1)1Uncommon6,683
Prayer potion (1)Prayer potion (1)1Uncommon583
Draconic visageDraconic visage1Very rare1,207,649
Draconic energyDraconic energy1Very rare207,316
Glaiven wing-tipGlaiven wing-tip1Very rare1,865,953
Onyx dustOnyx dust1–11Very rare12,060–132,660
Dragonfire ashDragonfire ash1Very rareNot sold
Starved ancient effigyStarved ancient effigy1Very rareNot sold
Sealed clue scroll (elite)Sealed clue scroll (elite)1Very rareNot sold

Rare drop table

This monster has access to the rare drop table.
Luck-enhancing items such as a ring of wealth or luck of the dwarves are not required to access the table.
Show/hide rare drop table
Item Quantity Rarity GE price
Coins 250Coins250–500Common250–500
Uncut sapphireUncut sapphire1Common320
Uncut emeraldUncut emerald1Common694
Uncut rubyUncut ruby1Common1,089
Uncut diamondUncut diamond1Common2,289
Uncut diamondUncut diamond45–55 (noted)Rare103,005–125,895
Loop half of a keyLoop half of a key1Common11,818
Tooth half of a keyTooth half of a key1Common13,078
Uncut dragonstoneUncut dragonstone1Uncommon10,770
Uncut dragonstoneUncut dragonstone45–55 (noted)Rare484,650–592,350
Dragon longswordDragon longsword1Common58,421
Dragon spearDragon spear1Rare37,048
BattlestaffBattlestaff180–220 (noted)Rare864,540–1,056,660
Rune javelinRune javelin5Rare900
Rune platebodyRune platebody1Uncommon37,480
Rune platebodyRune platebody15–25 (noted)Rare562,200–937,000
Shield left halfShield left half1Rare64,479
Dragon helmDragon helm1Uncommon59,069
Rune arrowheads 5Rune arrowheads113–137Common15,594–18,906
Onyx bolts 5Onyx bolts135–165Very rare1,079,865–1,319,835
Chaos talismanChaos talisman1Rare948
Nature talismanNature talisman1Rare885
Water talismanWater talisman65–82 (noted)Rare343,980–433,944
Earth talismanEarth talisman65–82 (noted)Rare53,170–67,076
Fire talismanFire talisman25–35 (noted)Rare22,900–32,060
Raw lobsterRaw lobster135–165 (noted)Common29,565–36,135
Raw sharkRaw shark225–275 (noted)Uncommon204,525–249,975
Big bonesBig bones68–82 (noted)Uncommon11,696–14,104
Dragon bonesDragon bones180–220 (noted)Rare349,020–426,580
CoalCoal200–1,100 (noted)Uncommon16,200–89,100
Gold oreGold ore90–110 (noted)Common21,780–26,620
Adamantite oreAdamantite ore180–220 (noted)Uncommon44,820–54,780
Adamant barAdamant bar14–16 (noted)Common21,476–24,544
Adamant barAdamant bar135–165 (noted)Rare207,090–253,110
Runite oreRunite ore90–110 (noted)Rare99,720–121,880
Rune barRune bar(noted)Common7,227
Rune barRune bar45–55 (noted)Rare108,405–132,495
Grimy torstolGrimy torstol90–110 (noted)Uncommon373,950–457,050
Grimy snapdragonGrimy snapdragon90–110 (noted)Uncommon124,830–152,570
Super restore (4)Super restore (4)45–55 (noted)Uncommon156,960–191,840
Prayer potion (4)Prayer potion (4)45–55 (noted)Uncommon115,515–141,185
Lantadyme seed 5Lantadyme seed14–16Uncommon4,578–5,232
Dwarf weed seed 5Dwarf weed seed14–16Uncommon4,718–5,392
Magic seed 5Magic seed4Uncommon100,248
Palm tree seed 5Palm tree seed10Rare322,160
FlaxFlax450–550 (noted)Common33,300–40,700
Molten glassMolten glass45–55 (noted)Common9,090–11,110
Soft claySoft clay450–550 (noted)Uncommon274,950–336,050
Yew logsYew logs68–82 (noted)Uncommon11,084–13,366
Yew logsYew logs675–825 (noted)Rare110,025–134,475
Teak plankTeak plank45–55 (noted)Uncommon18,270–22,330
Mahogany plankMahogany plank270–330 (noted)Rare222,480–271,920
Blurberry SpecialBlurberry Special1Uncommon8,340
Vecna skullVecna skull1Very rare*199,369
Hazelmere's signet ringHazelmere's signet ring1Very rare*1,848,679,360
Brawling gloves (Melee)Brawling gloves (Melee)1Very rareNot sold
Brawling gloves (Magic)Brawling gloves (Magic)1Very rareNot sold
Brawling gloves (Ranged)Brawling gloves (Ranged)1Very rareNot sold
Brawling gloves (Agility)Brawling gloves (Agility)1Very rareNot sold
Brawling gloves (Cooking)Brawling gloves (Cooking)1Very rareNot sold
Brawling gloves (FM)Brawling gloves (FM)1Very rareNot sold
Brawling gloves (Fishing)Brawling gloves (Fishing)1Very rareNot sold
Brawling gloves (Hunter)Brawling gloves (Hunter)1Very rareNot sold
Brawling gloves (Mining)Brawling gloves (Mining)1Very rareNot sold
Brawling gloves (Prayer)Brawling gloves (Prayer)1Very rareNot sold
Brawling gloves (Smithing)Brawling gloves (Smithing)1Very rareNot sold
Brawling gloves (Thieving)Brawling gloves (Thieving)1Very rareNot sold
Brawling gloves (WC)Brawling gloves (WC)1Very rareNot sold
Crystal triskelion fragment 1Crystal triskelion fragment 11Very rareNot sold
Crystal triskelion fragment 2Crystal triskelion fragment 21Very rareNot sold
Crystal triskelion fragment 3Crystal triskelion fragment 31Very rareNot sold

Dialogue

Achievements

  • Get Back, Hand! (RuneScore 5) - Use Forceful Backhand against a black hand during the Black Stone Dragon fight.
  • Shadow Wave (RuneScore 5) - Wave goodbye to a black hand.
  • Not a Moth (RuneScore 20) - Defeat the Black Stone Dragon without taking damage from any shadow flames.
  • Four in Hand (RuneScore 10) - Defeat all 4 black hands, within 10 seconds after defeating the first, during the Black Stone Dragon fight.

Trivia

  • The existence of the black stone dragon was first hinted at on release of the first elite dungeon, Temple of Aminishi. After releasing Seiryu from Xau-Tak's control, his dialogue refers to "another sharing his torment...under the obliterated crust of Forinthry."