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Onyx dragon icon

Onyx dragons are high-level Slayer monsters. They are part of the gemstone dragon group, and are the second strongest dragon of this type. They require the player to have 98 Slayer in order to kill them.

A total of six onyx dragons are located in the gemstone cavern under the Shilo Village mining site. They require the completion of the Hard Karamja Tasks in order to access them in the gem rock cavern underneath. In order to pass the barrier to confront them, players are also required to sacrifice a number of uncut dragonstone, uncut onyx, or uncut hydrix gems - with each gem type allowing the player to kill a certain number of dragons within their respective chamber; up to a limit of storing 60,000 kills at a time.

If the player is on a Slayer task for gemstone dragons, however, they may enter the gemstone cavern without the need for charges, and, if the player has already donated gems for charges, the charges will not be consumed while on-task.

Entrance fee to killing onyx dragons
Uncut gem Kills per gem Cost per kill
Uncut dragonstone Uncut dragonstone 2 5,570
Uncut onyx Uncut onyx 400 4,548
Incomplete hydrix Incomplete hydrix 4000 5,184

StrategiesEdit

Onyx dragons attack primarily with magic, although they will use both magic and melee if within melee range in addition to the regular dragonfire attack.

Onyx dragons will periodically use their special attack which steals some of the player's life points and heals the dragon for 5,000 life points. This can be avoided by moving away from the black spikes that come towards the player as a ripple effect, when they reach the player's location they will emerge as a 3 by 3 area of effect attack (AoE) and can be avoided completely by moving out of that area. They will not use their special attack if the player is within melee range.

Resonance may be used to heal from their special attack, but the attack will still heal the dragon. Of all the gemstone dragons' special attacks, this attack's effect is the least punishing, so it may be safer to do so with these dragons. Beware that overuse of Resonance to block the special attack over the course of the task results in having to deal a lot more damage to complete it. Similarly, Devotion may be used with Protect / Deflect Magic to block the attack's damage, but this does not prevent the attack from healing the dragon.

DropsEdit

100% dropEdit

Item Quantity Rarity GE price
Hardened dragon bonesHardened dragon bones1Always7,542

CharmsEdit

No charmGold charmGreen charmCrimson charmBlue charm
65–75%4–9%10–17%6–12%1–5%
Represents a 90% confidence range based on a sample of 228 kills.
3 charms are dropped at a time.
Add data to the log (requires JavaScript).

Main dropsEdit

Monster often drops two from this table.

Item Quantity Rarity GE price
Ring of lifeRing of life1Uncommon3,030
RubyRuby(noted)Uncommon2,270
Gold oreGold ore25–30 (noted)Uncommon4,700–5,640
OnyxOnyx1Very rare1,824,933
DiamondDiamond1Uncommon2,073
SapphireSapphire5–7 (noted)Common2,500–3,500
Onyx bolt tips 5Onyx bolt tips1Common6,708
Runite bolts 5Runite bolts6Common5,220
Ring of duelling (8)Ring of duelling (8)2Common5,118
Coins 1000Coins1,500–3,000Common1,500–3,000
Ruby bolt tips 5Ruby bolt tips48–60Common1,488–1,860
Dragonstone ringDragonstone ring1–2Common9,277–18,554
Gemstone helmGemstone helm1Very rare1,495,988
Gemstone greavesGemstone greaves1Very rare4,593,841
Draconic visageDraconic visage1Rare1,254,269

Tertiary dropsEdit

Item Quantity Rarity GE price
Clue scroll (hard)Clue scroll (hard)1RareNot sold

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