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King Black Dragon fight simulator: kill times in OSRS

King Black Dragon takes about 26.2 seconds per kill in OSRS with the best setup, a Twisted bow doing 10.18 DPS at level-99 stats. RuneBuddy's Boss Fight Simulator runs the real phased fight tick by tick, so you get a kill-time spread for your own gear rather than a flat DPS number.

King Black Dragon has a scripted fight in RuneBuddy's Boss Fight Simulator: its phases, attack rotation and punish mechanics are modelled tick by tick, so kill time accounts for the downtime a flat DPS figure hides. Open any loadout below to run the fight, or see the best-in-slot gear for King Black Dragon.

🏹 Ranged Best DPS
Twisted bow Twisted bow
10.18DPS
82Max hit
74.3%Accuracy
26.2sAvg TTK
  • Masori mask (f)Masori mask (f)
  • Dizana's quiverDizana's quiver
  • Necklace of ruptureNecklace of rupture
  • Seeking dragon arrowSeeking dragon arrow
  • Twisted bowTwisted bow
  • Masori body (f)Masori body (f)
  • Masori chaps (f)Masori chaps (f)
  • Zaryte vambracesZaryte vambraces
  • Avernic treads (max)Avernic treads (max)
  • Venator ringVenator ring
Prayer: Rigour Potion: Ranging potion
Open in fight simulator →
🔮 Magic
Tumeken's shadow Tumeken's shadow
9.34DPS
70Max hit
80.0%Accuracy
28.1sAvg TTK
  • Ancestral hatAncestral hat
  • Imbued guthix capeImbued guthix cape
  • Occult necklaceOccult necklace
  • Rada's blessing 4Rada's blessing 4
  • Tumeken's shadowTumeken's shadow
  • Ancestral robe topAncestral robe top
  • Ancestral robe bottomAncestral robe bottom
  • Confliction gauntletsConfliction gauntlets
  • Avernic treads (et)Avernic treads (et)
  • Magus ringMagus ring
Prayer: Augury Potion: Saturated heart
Open in fight simulator →
⚔️ Melee
Dragon hunter lance Dragon hunter lance
8.84DPS
62Max hit
68.4%Accuracy
29.5sAvg TTK
  • Torva full helmTorva full helm
  • Infernal capeInfernal cape
  • Amulet of rancourAmulet of rancour
  • Rada's blessing 4Rada's blessing 4
  • Dragon hunter lanceDragon hunter lance
  • Torva platebodyTorva platebody
  • Avernic defenderAvernic defender
  • Torva platelegsTorva platelegs
  • Ferocious glovesFerocious gloves
  • Avernic treads (max)Avernic treads (max)
  • Ultor ringUltor ring
Prayer: Piety Potion: Super combat
Open in fight simulator →

Assumes level-99 combat stats and the best relevant prayer and potion, off Slayer task (no Slayer-helmet bonus). DPS is single-target on the boss's base stats; magic setups consider powered staves. Numbers come from RuneBuddy's WASM combat engine, the same one behind the DPS calculator.

King Black Dragon kill time FAQ

How long does it take to kill King Black Dragon in OSRS?
King Black Dragon takes about 26.2 seconds per kill in OSRS with the best setup, a Twisted bow doing 10.18 DPS at level-99 stats. RuneBuddy's Boss Fight Simulator runs the real phased fight tick by tick, so you get a kill-time spread for your own gear rather than a flat DPS number.
What is the fastest setup for King Black Dragon?
The fastest kills come from a Twisted bow (10.18 DPS, 74.3% accuracy) with Rigour and a ranging potion.
How long does King Black Dragon take with melee?
The best melee setup for King Black Dragon is a Dragon hunter lance, which kills it in about 29.5 seconds per kill at 8.84 DPS.
How long does King Black Dragon take with ranged?
The best ranged setup for King Black Dragon is a Twisted bow, which kills it in about 26.2 seconds per kill at 10.18 DPS.
How long does King Black Dragon take with magic?
The best magic setup for King Black Dragon is a Tumeken's shadow, which kills it in about 28.1 seconds per kill at 9.34 DPS.

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