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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 bones1Always21,211
Onyx dustOnyx dust10–29Varies[1 1]206,290–598,241
Draconic energyDraconic energy1–110Varies[1 2]176,319–19,395,090
Mutated Barge ability codexMutated Barge ability codex1Very rare[1 3]144,110,786
Inert black stone crystalInert black stone crystal1Varies[1 4]Not sold
Uncut onyxUncut onyx1Rare(1/500)2,150,829
Uncut diamondUncut diamond10–25 (noted)Common(1/2)26,090–65,225
Uncut dragonstoneUncut dragonstone1–10 (noted)Uncommon(3/10)12,000–120,000
Onyx bolt tips 5Onyx bolt tips50–75Uncommon(1/25)354,650–531,975
Hydrix bolt tips 5Hydrix bolt tips50–75Common(1/10)453,600–680,400
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
LogsLogs1Uncommon321
Raw swordfishRaw swordfish1Uncommon442
Weapon poison++ (1)Weapon poison++ (1)1Uncommon4,889
Prayer potion (1)Prayer potion (1)1Uncommon756
Draconic visageDraconic visage1Very rare1,190,464
Draconic energyDraconic energy1Very rare176,319
Glaiven wing-tipGlaiven wing-tip1Very rare6,182,411
Onyx dustOnyx dust1–11Very rare20,629–226,919
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 sapphire1Common630
Uncut emeraldUncut emerald1Common949
Uncut rubyUncut ruby1Common1,254
Uncut diamondUncut diamond1Common2,609
Uncut diamondUncut diamond45–55 (noted)Rare117,405–143,495
Loop half of a keyLoop half of a key1Common11,047
Tooth half of a keyTooth half of a key1Common13,830
Uncut dragonstoneUncut dragonstone1Uncommon12,000
Uncut dragonstoneUncut dragonstone45–55 (noted)Rare540,000–660,000
Dragon longswordDragon longsword1Common56,874
Dragon spearDragon spear1Rare35,777
BattlestaffBattlestaff180–220 (noted)Rare528,840–646,360
Rune javelinRune javelin5Rare885
Rune platebodyRune platebody1Uncommon37,480
Rune platebodyRune platebody15–25 (noted)Rare562,200–937,000
Shield left halfShield left half1Rare63,791
Dragon helmDragon helm1Uncommon57,743
Rune arrowheads 5Rune arrowheads113–137Common13,108–15,892
Onyx bolts 5Onyx bolts135–165Very rare1,012,905–1,237,995
Chaos talismanChaos talisman1Rare1,120
Nature talismanNature talisman1Rare1,692
Water talismanWater talisman65–82 (noted)Rare160,160–202,048
Earth talismanEarth talisman65–82 (noted)Rare10,465–13,202
Fire talismanFire talisman25–35 (noted)Rare7,575–10,605
Raw lobsterRaw lobster135–165 (noted)Common78,570–96,030
Raw sharkRaw shark225–275 (noted)Uncommon389,250–475,750
Big bonesBig bones68–82 (noted)Uncommon18,836–22,714
Dragon bonesDragon bones180–220 (noted)Rare464,220–567,380
CoalCoal200–1,100 (noted)Uncommon20,200–111,100
Gold oreGold ore90–110 (noted)Common32,310–39,490
Adamantite oreAdamantite ore180–220 (noted)Uncommon45,000–55,000
Adamant barAdamant bar14–16 (noted)Common19,852–22,688
Adamant barAdamant bar135–165 (noted)Rare191,430–233,970
Runite oreRunite ore90–110 (noted)Rare90,450–110,550
Rune barRune bar(noted)Common5,796
Rune barRune bar45–55 (noted)Rare86,940–106,260
Grimy torstolGrimy torstol90–110 (noted)Uncommon552,510–675,290
Grimy snapdragonGrimy snapdragon90–110 (noted)Uncommon125,910–153,890
Super restore (4)Super restore (4)45–55 (noted)Uncommon131,985–161,315
Prayer potion (4)Prayer potion (4)45–55 (noted)Uncommon153,405–187,495
Lantadyme seed 5Lantadyme seed14–16Uncommon26,040–29,760
Dwarf weed seed 5Dwarf weed seed14–16Uncommon12,600–14,400
Magic seed 5Magic seed4Uncommon274,472
Palm tree seed 5Palm tree seed10Rare860,540
FlaxFlax450–550 (noted)Common51,750–63,250
Molten glassMolten glass45–55 (noted)Common15,750–19,250
Soft claySoft clay450–550 (noted)Uncommon274,950–336,050
Yew logsYew logs68–82 (noted)Uncommon14,960–18,040
Yew logsYew logs675–825 (noted)Rare148,500–181,500
Teak plankTeak plank45–55 (noted)Uncommon15,300–18,700
Mahogany plankMahogany plank270–330 (noted)Rare245,430–299,970
Blurberry SpecialBlurberry Special1Uncommon13,399
Vecna skullVecna skull1Very rare*116,132
Hazelmere's signet ringHazelmere's signet ring1Very rare*1,686,657,284
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."
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