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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 bones1Always19,108
Onyx dustOnyx dust10–29Varies[1 1]148,560–430,824
Draconic energyDraconic energy1–110Varies[1 2]193,034–21,233,740
Mutated Barge ability codexMutated Barge ability codex1Very rare[1 3]117,385,494
Inert black stone crystalInert black stone crystal1Varies[1 4]Not sold
Uncut onyxUncut onyx1Rare(1/500)1,595,144
Uncut diamondUncut diamond10–25 (noted)Common(1/2)27,870–69,675
Uncut dragonstoneUncut dragonstone1–10 (noted)Uncommon(3/10)13,190–131,900
Onyx bolt tips 5Onyx bolt tips50–75Uncommon(1/25)374,900–562,350
Hydrix bolt tips 5Hydrix bolt tips50–75Common(1/10)472,300–708,450
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
LogsLogs1Uncommon427
Raw swordfishRaw swordfish1Uncommon424
Weapon poison++ (1)Weapon poison++ (1)1Uncommon10,103
Prayer potion (1)Prayer potion (1)1Uncommon840
Draconic visageDraconic visage1Very rare1,195,130
Draconic energyDraconic energy1Very rare193,034
Glaiven wing-tipGlaiven wing-tip1Very rare3,475,283
Onyx dustOnyx dust1–11Very rare14,856–163,416
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 sapphire1Common441
Uncut emeraldUncut emerald1Common812
Uncut rubyUncut ruby1Common1,467
Uncut diamondUncut diamond1Common2,787
Uncut diamondUncut diamond45–55 (noted)Rare125,415–153,285
Loop half of a keyLoop half of a key1Common11,260
Tooth half of a keyTooth half of a key1Common14,940
Uncut dragonstoneUncut dragonstone1Uncommon13,190
Uncut dragonstoneUncut dragonstone45–55 (noted)Rare593,550–725,450
Dragon longswordDragon longsword1Common57,549
Dragon spearDragon spear1Rare36,183
BattlestaffBattlestaff180–220 (noted)Rare574,020–701,580
Rune javelinRune javelin5Rare905
Rune platebodyRune platebody1Uncommon37,480
Rune platebodyRune platebody15–25 (noted)Rare562,200–937,000
Shield left halfShield left half1Rare64,271
Dragon helmDragon helm1Uncommon58,860
Rune arrowheads 5Rune arrowheads113–137Common14,125–17,125
Onyx bolts 5Onyx bolts135–165Very rare1,040,715–1,271,985
Chaos talismanChaos talisman1Rare1,456
Nature talismanNature talisman1Rare1,281
Water talismanWater talisman65–82 (noted)Rare204,360–257,808
Earth talismanEarth talisman65–82 (noted)Rare12,740–16,072
Fire talismanFire talisman25–35 (noted)Rare8,375–11,725
Raw lobsterRaw lobster135–165 (noted)Common81,810–99,990
Raw sharkRaw shark225–275 (noted)Uncommon269,550–329,450
Big bonesBig bones68–82 (noted)Uncommon12,716–15,334
Dragon bonesDragon bones180–220 (noted)Rare431,820–527,780
CoalCoal200–1,100 (noted)Uncommon23,800–130,900
Gold oreGold ore90–110 (noted)Common34,020–41,580
Adamantite oreAdamantite ore180–220 (noted)Uncommon43,020–52,580
Adamant barAdamant bar14–16 (noted)Common21,112–24,128
Adamant barAdamant bar135–165 (noted)Rare203,580–248,820
Runite oreRunite ore90–110 (noted)Rare81,720–99,880
Rune barRune bar(noted)Common6,507
Rune barRune bar45–55 (noted)Rare97,605–119,295
Grimy torstolGrimy torstol90–110 (noted)Uncommon774,000–946,000
Grimy snapdragonGrimy snapdragon90–110 (noted)Uncommon173,340–211,860
Super restore (4)Super restore (4)45–55 (noted)Uncommon147,690–180,510
Prayer potion (4)Prayer potion (4)45–55 (noted)Uncommon192,780–235,620
Lantadyme seed 5Lantadyme seed14–16Uncommon39,326–44,944
Dwarf weed seed 5Dwarf weed seed14–16Uncommon20,958–23,952
Magic seed 5Magic seed4Uncommon404,680
Palm tree seed 5Palm tree seed10Rare927,220
FlaxFlax450–550 (noted)Common45,000–55,000
Molten glassMolten glass45–55 (noted)Common14,265–17,435
Soft claySoft clay450–550 (noted)Uncommon232,650–284,350
Yew logsYew logs68–82 (noted)Uncommon13,736–16,564
Yew logsYew logs675–825 (noted)Rare136,350–166,650
Teak plankTeak plank45–55 (noted)Uncommon15,300–18,700
Mahogany plankMahogany plank270–330 (noted)Rare248,670–303,930
Blurberry SpecialBlurberry Special1Uncommon14,775
Vecna skullVecna skull1Very rare*96,580
Hazelmere's signet ringHazelmere's signet ring1Very rare*1,621,945,897
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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