|Released||10 January 2019 (Update)|
|Always drops||Hydra bones|
|A ferocious Alchemical Hydra!|
|Max hit||17+17 (default)|
|Weakness||Stab, ranged, dragonbane weapons|
|Attack style||Ranged, magic|
The Alchemical Hydra is a boss found in lower level of the Karuulm Slayer Dungeon in Mount Karuulm, requiring level 95 Slayer to kill. The Alchemical Hydra was the creation of an unnamed dragonkin. While the Dragonkin saw promise in his creation, he nevertheless saw it as a failure because he could not replicate its traits, and abandoned it along with his other creations; the Wyrms, Drakes, and Hydras.
Unlike normal hydras, the Alchemical Hydra can only be killed while on a hydra slayer task, which are only assigned by Konar. In addition, as it is only found within the volcano, players who have not completed the elite Kourend & Kebos Diary must wear boots of stone, boots of brimstone, or granite boots to protect themselves from the extreme heat of the dungeon floor.
Along with all the unique drops obtainable from hydras, it can also drop hydra leather, which is used on the machinery south-west of the pool in the Lithkren Vault to create ferocious gloves, as well as the hydra claw, which is combined with a Zamorakian hasta to create the dragon hunter lance.
The boss's lair[edit | edit source]
To reach the boss, players must run north past the Tasakaal, then east past the hydras. They will then reach the entrance to the lair by Orrvor quo Maten. Alternatively, players with level 88 Agility can reach it safely by using the mysterious pipe just behind Kaal-Ket-Jor, though this takes roughly the same time as reaching it by running past the hydras.
The Alchemical Hydra's lair is located in an instanced area with no limits to how many players can fight it on a world, unlike the Grotesque Guardians which are limited to eight instances per world. If the player dies battling the Alchemical Hydra, they can pay a 100,000 coin fee to reclaim their items from Orrvor quo Maten. If the player dies elsewhere before reclaiming their items from there, their unclaimed items will be permanently lost. In addition to this, Orrvor's storage capabilities do not stack with others (e.g. Zulrah, Grotesque Guardians), so if players have items being held by one of these fights and dies to the Alchemical Hydra, the items there will be lost.
Fight overview[edit | edit source]
Alchemical Hydra has four phases throughout the fight, depending on its remaining health. It attacks with Ranged and Magic, alternating between them every three attacks for the first three phases. At the start of each phase, it has a 75% damage reduction, which can be removed if it is lured over a vent on the floor which spews chemical liquid. However, the vent must be the correct one, corresponding to the combat triangle (e.g. when it is green, red will weaken it), otherwise the Hydra's damage is increased by up to 50%.
When the Alchemical Hydra reaches 75%, 50% or 25% of its health, it will lose one of its heads and changes phase. The damage reduction is reapplied, and so it should be lured over the next vent. It also has special attacks for each phase: poison pools when green and black, electricity when blue and fire when red. These special attacks can be avoided, but they can be devastating if dealt with carelessly.
When the Hydra is killed, it will respawn in approximately 25 seconds.
Drops[edit | edit source]
In addition to the 100% drop, the player will also have two rolls on the Alchemical Hydra's drop table. The first drop has a chance to be a unique, while the second is always standard. The drop rates in the drop table below reflect the effective chance of getting an item. For example, a drop rate of 2/100 indicates that you have two 1/100 chances of receiving the drop.
Drops remain on the ground for 30 minutes, or until the player leaves the instanced area.
100%[edit | edit source]
Item Quantity Rarity GE market price Hydra bones 2 Always 10,130
Unique[edit | edit source]
- Due to a unique mechanic, items are very slightly rarer than officially announced.
Item Quantity Rarity GE market price Hydra's eye 1 Rare (~1/181)[a 1] Not sold Hydra's fang 1 Rare (~1/181)[a 1] Not sold Hydra's heart 1 Rare (~1/181)[a 1] Not sold Hydra tail 1 Rare (~1/513) 260,195 Hydra leather 1 Rare (~1/514) 6,256,427 Hydra's claw 1 Very rare (1/1,001) 20,061,201 Dragon thrownaxe 500–1,000 Very rare (1/2,000) 145,000–290,000 Dragon knife 500–1,000 Very rare (~1/2,001) 1,200,000–2,400,000
- The order players receive the items in are: Hydra's eye, Hydra's fang and finally Hydra's heart.
Weapons and armour[edit | edit source]
Item Quantity Rarity GE market price Mystic fire staff 1 Common (~16/100)[b 1] 25,362 Mystic water staff 1 Common (~16/100)[b 1] 25,281 Battlestaff 8–12 (noted) Common (~10/100) 67,576–101,364 Black d'hide body 1 Common (~10/100) 7,600 Dragon longsword 1 Common (~6/100) 59,470 Dragon med helm 1 Common (~6/100) 59,121 Rune platebody 1 Common (~6/100)[b 2] 38,534 Dragon battleaxe 1 Common (~4/100) 119,399 Rune platelegs 1 Uncommon (~3/100)[b 2] 37,947 Rune plateskirt 1 Uncommon (~3/100)[b 2] 37,999 Mystic robe top (light) 1 Uncommon (~2/100)[b 3] 71,818 Mystic robe bottom (light) 1 Uncommon (~2/100)[b 3] 47,599
Runes and ammunition[edit | edit source]
Item Quantity Rarity GE market price Chaos rune 150–300 Common (~12/100) 14,700–29,400 Death rune 150–300 Common (~12/100) 33,450–66,900 Blood rune 150–300 Common (~12/100) 43,650–87,300 Astral rune 150–300 Common (~12/100) 22,050–44,100 Dragonstone bolts (e) 100–120 Common (~4/100) 49,200–59,040 Onyx bolts (e) 35–50 Uncommon (~2/100) 305,550–436,500
Herbs[edit | edit source]
There is approximately a 20/100 chance of receiving a herb drop.
Item Quantity Rarity GE market price Grimy ranarr weed 10–15 (noted) Uncommon (~1/40) 67,920–101,880 Grimy avantoe 10–15 (noted) Uncommon (~1/40) 15,490–23,235 Grimy snapdragon 10–15 (noted) Uncommon (~1/40) 81,680–122,520 Grimy torstol 10–15 (noted) Uncommon (~1/40) 70,890–106,335 Grimy kwuarm 25–30 (noted) Uncommon (~1/40) 25,800–30,960 Grimy cadantine 25–30 (noted) Uncommon (~1/40) 30,525–36,630 Grimy lantadyme 25–30 (noted) Uncommon (~1/40) 29,850–35,820 Grimy dwarf weed 25–30 (noted) Uncommon (~1/40) 15,000–18,000
Seeds[edit | edit source]
There is approximately a 4/100 chance of receiving a seed drop.
Item Quantity Rarity GE market price Torstol seed 2–3 Rare (~1/240) 95,244–142,866 Ranarr seed 2–3 Rare (~1/240) 77,886–116,829 Snapdragon seed 2–3 Rare (~1/240) 103,514–155,271 Willow seed 2–3 Rare (~1/266.67) 8,220–12,330 Watermelon seed 30–45 Rare (~1/320) 3,450–5,175 Maple seed 2–3 Rare (~1/320) 72,980–109,470 Yew seed 2–3 Rare (~1/320) 164,178–246,267 Teak seed 2–3 Rare (~1/320) 114–171 Mahogany seed 2–3 Rare (~1/320) 6,736–10,104 Papaya tree seed 2–3 Rare (~1/400) 7,274–10,911 Palm tree seed 2–3 Rare (~1/533.33) 73,216–109,824 Magic seed 2–3 Rare (~1/640) 271,360–407,040 Spirit seed 2–3 Very rare (~1/1,066.67) Not sold Celastrus seed 2–3 Very rare (~1/1,600) 161,024–241,536 Dragonfruit tree seed 2–3 Very rare (~1/3,200) 312,888–469,332 Redwood tree seed 2–3 Very rare (~1/3,200) 67,520–101,280
Other[edit | edit source]
Item Quantity Rarity GE market price Coins 40,000–60,000 Common (~18/100) Not sold Shark 2–4 Common (~14/100) 1,482–2,964 Ranging potion(3) 1 Common (~14/100)[c 1] 932 Super restore(3) 2 Common (~14/100)[c 1] 14,452 Dragon bones 30 (noted) Common (~12/100) 67,260 Rare drop table 1–2 Common (~4/100) Not sold Crystal key 1 Uncommon (~2/100) 21,874
Tertiary drops[edit | edit source]
Item Quantity Rarity GE market price Brimstone key 1 Uncommon (1/50) Not sold Alchemical hydra heads 1 Rare (1/256) Not sold Clue scroll (hard) 1 Rare (1/100) Not sold Clue scroll (elite) 1 Rare (1/256) Not sold Jar of chemicals 1 Very rare (1/2,000) 296,210 Ikkle hydra 1 Very rare (1/3,000) Not sold
Rare drop table
In addition to the drops above, this monster approximately has a 4/100 chance to access the standard rare drop table.
Show/hide rare drop table Item Quantity Rarity GE market price Coins 3,000 Rare (1/145.45) Not sold Loop half of key 1 Rare (1/158.76; 1/157.54)[R 1] 11,938 Tooth half of key 1 Rare (1/167.05; 1/165.7)[R 1] 9,629 Uncut sapphire 1 Rare (1/640; 1/320)[R 1] 628 Runite bar 1 Rare (1/640) 12,471 Nature rune 67 Very rare (1/1,066.67) 13,735 Rune 2h sword 1 Very rare (1/1,066.67) 37,973 Rune battleaxe 1 Very rare (1/1,066.67) 24,588 Uncut emerald 1 Very rare (1/1,280; 1/640)[R 1] 766 Law rune 45 Very rare (1/1,600) 8,955 Death rune 45 Very rare (1/1,600) 10,035 Steel arrow 150 Very rare (1/1,600) 4,800 Rune arrow 42 Very rare (1/1,600) 4,242 Adamant javelin 20 Very rare (1/1,600) 1,200 Rune sq shield 1 Very rare (1/1,600) 22,611 Dragonstone 1 Very rare (1/1,600) 12,175 Silver ore 100 (noted) Very rare (1/1,600) 7,400 Uncut ruby 1 Very rare (1/2,560; 1/1,280)[R 1] 1,412 Rune kiteshield 1 Very rare (1/3,200) 32,195 Dragon med helm 1 Very rare (1/3,200) 59,121 Rune spear 1 Very rare (1/3,378.14; 1/395.88)[R 1] 12,049 Shield left half 1 Very rare (1/6,756.29; 1/791.75)[R 1] 65,613 Unknown talisman
1 Very rare (1/6,826.67; 1/3,413.33)[R 1] Not sold Dragon spear 1 Very rare (1/9,008.38; 1/1,055.67)[R 1] 37,971 Uncut diamond 1 Very rare (1/10,240; 1/5,120)[R 1] 2,867 Rune javelin 5 Very rare (1/20,480; 1/10,240)[R 1] 800
- The drop rate is increased when wearing a Ring of wealth.
Gallery[edit | edit source]
A teaser image of the Alchemical Hydra in an area resembling Dragonkin architecture
Changes[edit | edit source]
|14 January 2019 (update)||The Alchemical Hydra gained access to Konar's drop table.|
|31 January 2019 (update)||The jar of chemicals was added as a possible tertiary drop.|
|7 February 2019 (update)||The alchemical hydra heads was added as a possible tertiary drop.|
References[edit | edit source]
- Jagex. Mod Ash's Twitter account. 13 January 2019. Mod Ash: "The first roll will go to the unique table OR to the standard table. The second roll will always go to the standard table. And you only get one pet roll in either situation."
- Jagex. Mod Munro's Twitter account. 13 February 2019. Mod Munro: "As I mentioned on the Q & A, here are the pictures of the drop rates for various parts of Kebos. This time with the correct drop rate for the pieces of the Brimstone Ring. "
- Alchemical Hydra drop log
- Whether a unique item is dropped is determined by the game rolling each item in succession, and if it fails, the next item is rolled. If any item is successfully rolled, it will be dropped, and if no item is rolled, it is replaced by a regular drop. The order is dragon thrownaxe, dragon knife, hydra's claw, hydra tail, hydra leather and brimstone ring piece. For example, a brimstone ring piece rate follows the formula
1 / ((1999 / 2000) * (1999 / 2000) * (999 / 1000) * (511 / 512) * (511 / 512) * (1 / 180)) ≈ 1/181.07.
Jagex. Mod Munro's Twitter account. 14 February 2019.
- Jagex. Old School RuneScape's Twitter account. 14 January 2019.
Dragons and dragon-like races