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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 bones1Always14,420
Onyx dustOnyx dust10–29Varies[1 1]165,620–480,298
Draconic energyDraconic energy1–110Varies[1 2]227,496–25,024,560
Mutated Barge ability codexMutated Barge ability codex1Very rare[1 3]34,328,896
Inert black stone crystalInert black stone crystal1Varies[1 4]Not sold
Uncut onyxUncut onyx1Rare(1/500)1,753,061
Uncut diamondUncut diamond10–25 (noted)Common(1/2)26,300–65,750
Uncut dragonstoneUncut dragonstone1–10 (noted)Uncommon(3/10)11,317–113,170
Onyx bolt tips 5Onyx bolt tips50–75Uncommon(1/25)345,650–518,475
Hydrix bolt tips 5Hydrix bolt tips50–75Common(1/10)487,350–731,025
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
LogsLogs1Uncommon239
Raw swordfishRaw swordfish1Uncommon285
Weapon poison++ (1)Weapon poison++ (1)1Uncommon6,500
Prayer potion (1)Prayer potion (1)1Uncommon643
Draconic visageDraconic visage1Very rare1,265,285
Draconic energyDraconic energy1Very rare227,496
Glaiven wing-tipGlaiven wing-tip1Very rare3,832,141
Onyx dustOnyx dust1–11Very rare16,562–182,182
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 sapphire1Common403
Uncut emeraldUncut emerald1Common1,196
Uncut rubyUncut ruby1Common1,064
Uncut diamondUncut diamond1Common2,630
Uncut diamondUncut diamond45–55 (noted)Rare118,350–144,650
Loop half of a keyLoop half of a key1Common14,961
Tooth half of a keyTooth half of a key1Common17,892
Uncut dragonstoneUncut dragonstone1Uncommon11,317
Uncut dragonstoneUncut dragonstone45–55 (noted)Rare509,265–622,435
Dragon longswordDragon longsword1Common57,477
Dragon spearDragon spear1Rare35,169
BattlestaffBattlestaff180–220 (noted)Rare1,130,580–1,381,820
Rune javelinRune javelin5Rare840
Rune platebodyRune platebody1Uncommon37,426
Rune platebodyRune platebody15–25 (noted)Rare561,390–935,650
Shield left halfShield left half1Rare64,779
Dragon helmDragon helm1Uncommon58,616
Rune arrowheads 5Rune arrowheads113–137Common26,442–32,058
Onyx bolts 5Onyx bolts135–165Very rare1,069,335–1,306,965
Chaos talismanChaos talisman1Rare1,212
Nature talismanNature talisman1Rare989
Water talismanWater talisman65–82 (noted)Rare572,130–721,764
Earth talismanEarth talisman65–82 (noted)Rare192,010–242,228
Fire talismanFire talisman25–35 (noted)Rare54,700–76,580
Raw lobsterRaw lobster135–165 (noted)Common21,600–26,400
Raw sharkRaw shark225–275 (noted)Uncommon249,525–304,975
Big bonesBig bones68–82 (noted)Uncommon15,096–18,204
Dragon bonesDragon bones180–220 (noted)Rare298,800–365,200
CoalCoal200–1,100 (noted)Uncommon28,000–154,000
Gold oreGold ore90–110 (noted)Common13,770–16,830
Adamantite oreAdamantite ore180–220 (noted)Uncommon241,920–295,680
Adamant barAdamant bar14–16 (noted)Common50,722–57,968
Adamant barAdamant bar135–165 (noted)Rare489,105–597,795
Runite oreRunite ore90–110 (noted)Rare1,021,410–1,248,390
Rune barRune bar(noted)Common41,826
Rune barRune bar45–55 (noted)Rare627,390–766,810
Grimy torstolGrimy torstol90–110 (noted)Uncommon316,080–386,320
Grimy snapdragonGrimy snapdragon90–110 (noted)Uncommon99,180–121,220
Super restore (4)Super restore (4)45–55 (noted)Uncommon127,845–156,255
Prayer potion (4)Prayer potion (4)45–55 (noted)Uncommon121,050–147,950
Lantadyme seed 5Lantadyme seed14–16Uncommon3,164–3,616
Dwarf weed seed 5Dwarf weed seed14–16Uncommon5,180–5,920
Magic seed 5Magic seed4Uncommon351,132
Palm tree seed 5Palm tree seed10Rare796,390
FlaxFlax450–550 (noted)Common20,700–25,300
Molten glassMolten glass45–55 (noted)Common4,545–5,555
Soft claySoft clay450–550 (noted)Uncommon189,000–231,000
Yew logsYew logs68–82 (noted)Uncommon9,928–11,972
Yew logsYew logs675–825 (noted)Rare98,550–120,450
Teak plankTeak plank45–55 (noted)Uncommon20,565–25,135
Mahogany plankMahogany plank270–330 (noted)Rare240,840–294,360
Blurberry SpecialBlurberry Special1Uncommon8,475
Vecna skullVecna skull1Very rare*220,994
Hazelmere's signet ringHazelmere's signet ring1Very rare*2,052,582,424
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."