Colossal Hydra

Colossal Hydra
Released	23 July 2020 (Update)
Members	Yes
Combat level	309
Size	5x5
Examine	Don't forget to hydra-te.
League region	Kourend✓
Combat info
Attribute	Draconic
Max hit	34
Aggressive	No
Poisonous	No
Attack style	Magic, Ranged
Attack speed	6 ticks (3.6 seconds)
Slayer info
Slayer level	95
Slayer XP	8,625 xp
Category	Hydras
Assigned by	File:Konar chathead.png
Combat stats
Aggressive stats
Melee defence
Magic defence
+200	No elemental weakness
Ranged defence
Immunities
Poison	Immune
Venom	Immune
	Open in DPS calculator
Advanced data
Monster ID	10402

This article has a Slayer task guide here.

Information comparing locations for Slayer tasks will be on this page

The colossal hydra is a superior variant of the hydra. It has a chance of spawning after purchasing the unlock Bigger and Badder for 150 Slayer reward points from any Slayer master.

In combat, the colossal hydra will occasionally shoot out an electric lightning attack. The lightning will come as two pools chasing the player for some time, dealing modest damage and paralysing the player if struck. The spell Vengeance does not work against the colossal hydra special attack.

Drops

In addition to 100% drops and tertiary drops, superior slayer monsters will always roll 3 additional items, of which only 1 roll may be from the superior unique table. The other rolls are performed on the regular counterpart's table; their displayed drop chances represent a single roll.

Drop rates estimated based on 16,739 samples from the Drop Rate Project, unless otherwise cited.

100%

	Item	Quantity	Rarity	Price	High Alch
	Hydra bones	1	Always	8,760	96
Brimstone key.png: Colossal Hydra drops Brimstone key with rarity Always in quantity 1	Brimstone key	1	Always^{[d 1]}	Not sold	N/A

^ Brimstone keys are only dropped if killed on a Slayer task given by Konar quo Maten.

Pre-roll

Item	Quantity	Rarity	Price	High Alch
Hydra's eye	1	1/360.72^{[d 1]}^[1]	Not sold	60,000
Hydra's heart	1	1/360.72^{[d 1]}^[1]	Not sold	60,000
Hydra's fang	1	1/360.72^{[d 1]}^[1]	Not sold	60,000
Hydra tail	1	1/1,001^[1]	91,539	60,000
Dragon thrownaxe	200–400	1/2,000^[1]	73,600–147,200	90,000–180,000
Dragon knife	200–400	1/2,001^[1]	1,220,000–2,440,000	20,000–40,000

^ ^1.0 ^1.1 ^1.2 The order players receive the items in are: Hydra's eye, Hydra's fang, and finally Hydra's heart.

Weapons and armour

Item	Quantity	Rarity	Price	High Alch
Black d'hide chaps	1	3/128	4,378	3,732
Battlestaff	2–3 (noted)	2/128	16,618–24,927	8,400–12,600
Fire battlestaff	1	5/128	8,983	9,300
Water battlestaff	1	5/128	9,047	9,300
Rune kiteshield	1	3/128	32,131	32,640
Rune platebody	1	1/128	38,507	39,000
Mystic robe bottom	1	1/128	47,481	48,000
Dragon longsword	1	1/128	59,175	60,000

Runes

Item	Quantity	Rarity	Price	High Alch
Blood rune	15–45	9/128	3,210–9,630	3,600–10,800
Chaos rune	20–50	9/128	2,040–5,100	1,080–2,700
Death rune	30–60	9/128	4,800–9,600	3,240–6,480
Fire rune	70–90	9/128	350–450	140–180
Law rune	30–60	9/128	3,810–7,620	4,320–8,640
Water rune	70–90	9/128	350–450	140–180

Herbs

There is a 4/128 chance of rolling the herb drop table. There is a 2/128 chance to hit the noted herb drop table.

Item	Quantity	Rarity	Price	High Alch
Grimy guam leaf	1–3	1/128	326–978	7–21
Grimy marrentill	1–3	1/170.7	398–1,194	8–24
Grimy tarromin	1–3	1/227.6	379–1,137	9–27
Grimy harralander	1–3	1/292.6	676–2,028	9–27
Grimy ranarr weed	1–3	1/372.4	6,709–20,127	18–54
Grimy irit leaf	1–3	1/512	1,472–4,416	10–30
Grimy avantoe	1–3	1/682.7	3,263–9,789	10–30
Grimy kwuarm	1–3	1/819.2	3,574–10,722	12–36
Grimy cadantine	1–3	1/1,024	2,987–8,961	13–39
Grimy lantadyme	1–3	1/1,365.3	1,861–5,583	13–39
Grimy dwarf weed	1–3	1/1,365.3	2,036–6,108	14–42
Grimy avantoe	3 (noted)	1/192	9,789	30
Grimy ranarr weed	3 (noted)	1/240	20,127	54
Grimy snapdragon	3 (noted)	1/320	24,843	36
Grimy torstol	3 (noted)	1/320	8,376	45

Seeds

There is a 4/128 chance of rolling the rare seed drop table.

	Item	Quantity	Rarity	Price	High Alch
Toadflax seed.png: Colossal Hydra drops Toadflax seed with rarity 1/160.7 in quantity 1	Toadflax seed	1	1/160.7	1,406	6
Irit seed.png: Colossal Hydra drops Irit seed with rarity 1/236 in quantity 1	Irit seed	1	1/236	63	3
Belladonna seed.png: Colossal Hydra drops Belladonna seed with rarity 1/243.6 in quantity 1	Belladonna seed	1	1/243.6	175	106
Poison ivy seed.png: Colossal Hydra drops Poison ivy seed with rarity 1/343.3 in quantity 1	Poison ivy seed	1	1/343.3	16	99
Avantoe seed.png: Colossal Hydra drops Avantoe seed with rarity 1/343.3 in quantity 1	Avantoe seed	1	1/343.3	2,486	4
Cactus seed.png: Colossal Hydra drops Cactus seed with rarity 1/359.6 in quantity 1	Cactus seed	1	1/359.6	67	59
Potato cactus seed.png: Colossal Hydra drops Potato cactus seed with rarity 1/503.5 in quantity 1	Potato cactus seed	1	1/503.5	12	84
Kwuarm seed.png: Colossal Hydra drops Kwuarm seed with rarity 1/503.5 in quantity 1	Kwuarm seed	1	1/503.5	3,820	6
Snapdragon seed.png: Colossal Hydra drops Snapdragon seed with rarity 1/755.2 in quantity 1	Snapdragon seed	1	1/755.2	41,659	36
Cadantine seed.png: Colossal Hydra drops Cadantine seed with rarity 1/1,078.9 in quantity 1	Cadantine seed	1	1/1,078.9	3,987	4
Lantadyme seed.png: Colossal Hydra drops Lantadyme seed with rarity 1/1,510.4 in quantity 1	Lantadyme seed	1	1/1,510.4	451	5
Snape grass seed.png: Colossal Hydra drops Snape grass seed with rarity 1/1,888 in quantity 3	Snape grass seed	3	1/1,888	22,698	168
Dwarf weed seed.png: Colossal Hydra drops Dwarf weed seed with rarity 1/2,517.3 in quantity 1	Dwarf weed seed	1	1/2,517.3	883	3
Torstol seed.png: Colossal Hydra drops Torstol seed with rarity 1/3,776 in quantity 1	Torstol seed	1	1/3,776	6,381	42

Bolt tips

There is a 2/128 chance of rolling the bolt tips drop table.

	Item	Quantity	Rarity	Price	High Alch
Diamond bolt tips.png: Colossal Hydra drops Diamond bolt tips with rarity 1/256 in quantity 20	Diamond bolt tips	20	1/256	3,460	1,580
Ruby bolt tips.png: Colossal Hydra drops Ruby bolt tips with rarity 1/284.4 in quantity 20	Ruby bolt tips	20	1/284.4	1,860	800
Emerald bolt tips.png: Colossal Hydra drops Emerald bolt tips with rarity 1/284.4 in quantity 20	Emerald bolt tips	20	1/284.4	1,060	380
Dragonstone bolt tips.png: Colossal Hydra drops Dragonstone bolt tips with rarity 1/365.7 in quantity 20	Dragonstone bolt tips	20	1/365.7	19,620	8,000
Onyx bolt tips.png: Colossal Hydra drops Onyx bolt tips with rarity 1/853.3 in quantity 20	Onyx bolt tips	20	1/853.3	174,540	12,000
Sapphire bolt tips.png: Colossal Hydra drops Sapphire bolt tips with rarity 1/1,280 in quantity 20	Sapphire bolt tips	20	1/1,280	200	200

Other

Item	Quantity	Rarity	Price	High Alch
Coins	500–3,500	16/128	500–3,500	500–3,500
Monkfish	1	11/128	306	138
Super combat potion(1)	1	4/128	3,821	24
Dragon bones	3–5 (noted)	3/128	9,492–15,820	288–480
Super restore(1)	1–2	6/128	2,650–5,300	72–144

Gem drop table

There is a 1/128 chance of rolling the gem drop table.

Item	Quantity	Rarity	Price	High Alch
Nothing	N/A	1/256.47; Never^{[d 1]}	N/A	N/A
Uncut sapphire	1	1/512; 1/260^{[d 2]}	238	15
Uncut emerald	1	1/1,024; 1/520^{[d 2]}	463	30
Uncut ruby	1	1/2,048; 1/1,040^{[d 2]}	988	60
Nature talisman	1	1/5,461.33; 1/2,773.33^{[d 2]}	328	2
Uncut diamond	1	1/8,192; 1/4,160^{[d 2]}	2,142	120
Loop half of key	1	1/16,384; 1/8,320^{[d 2]}	11,919	60
Tooth half of key	1	1/16,384; 1/8,320^{[d 2]}	11,925	60
Rune javelin	5	1/16,384; 1/8,320^{[d 2]}	950	1,200
Rune spear	1	1/262,144; 1/15,600^{[d 2]}^{[d 3]}	11,871	12,480
Shield left half	1	1/524,288; 1/31,200^{[d 2]}^{[d 3]}	65,394	66,000
Dragon spear	1	1/699,050.67; 1/41,600^{[d 2]}^{[d 3]}	38,854	37,440

^ The "nothing" drop is removed while wearing a ring of wealth.
^ ^2.00 ^2.01 ^2.02 ^2.03 ^2.04 ^2.05 ^2.06 ^2.07 ^2.08 ^2.09 ^2.10 The drop rate is increased while wearing a ring of wealth due to the "nothing" drop being removed.
^ ^3.0 ^3.1 ^3.2 Only dropped if Legends' Quest has been finished; if not, a talisman is dropped instead.

Tertiary

	Item	Quantity	Rarity	Price	High Alch
	Clue scroll (hard)	1	10/128^{[d 1]}^[1]	Not sold	12
	Clue scroll (elite)	1	10/512^{[d 2]}^[2]	Not sold	12

^ The hard clue scroll drop rate increases to 1/12 after unlocking the hard Combat Achievements rewards tier.
^ The elite clue scroll drop rate increases to 1/48 after unlocking the elite Combat Achievements rewards tier.

Superior Slayer tertiary

The chance to spawn a superior creature is 1/200.^{[d 1]}

Item	Quantity	Rarity	Price	High Alch
Mist battlestaff	1	1/46	52,893	9,300
Dust battlestaff	1	1/46	16,868	9,300
Eternal gem	1	1/160	8,682,403	5,700
Imbued heart	1	1/160	105,502,562	300,000

^ The superior creature spawn rate increases to 1/150 after unlocking the elite Combat Achievements rewards tier.

Changes

Date	Changes
[[{{#explode:23 October 2024\| \|0}} {{#explode:23 October 2024\| \|1}}]] [[{{#explode:23 October 2024\| \|2}}]] (update)	During the colossal hydra's special attack, the smaller hydras are no longer able to attack you.
[[{{#explode:8 May 2024\| \|0}} {{#explode:8 May 2024\| \|1}}]] [[{{#explode:8 May 2024\| \|2}}]] (update)	Superior slayer monsters are now guaranteed to drop brimstone keys when on a task from Konar.

Gallery

Concept art revealed in the June 2020 Gielinor Gazette

Bug

Bugs:

When the Colossal Hydra begins its lightning special attack, the player will lose aggression. If the Aggression Timer is yet to run out, the hydra in the area will attack the player.

Trivia

The hydra's appearance may be a reference to the three-headed dragon meme, in which two heads appear intimidating, whilst the third appears bug-eyed and is drooling.

References

^ ^1.0 ^1.1 ^1.2 ^1.3 ^1.4 ^1.5 ^1.6 Jagex. Mod Munro's Twitter account. 13 February 2019. Archived from the original on 25 March 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."
^ Jagex. Mod Tide's Twitter account. 24 May 2019. Archived from the original on 24 May 2019. Mod Tide: "I know its been a while since the clue expansion but here is the information on clue scroll drop rates and loot chances! If anything changes I will keep you posted."

[1] Brimstone keys are only dropped if killed on a Slayer task given by Konar quo Maten.

[parts-2] 1.0 ^1.1 ^1.2 The order players receive the items in are: Hydra's eye, Hydra's fang, and finally Hydra's heart.

[4] The "nothing" drop is removed while wearing a ring of wealth.

[row-5] 2.00 ^2.01 ^2.02 ^2.03 ^2.04 ^2.05 ^2.06 ^2.07 ^2.08 ^2.09 ^2.10 The drop rate is increased while wearing a ring of wealth due to the "nothing" drop being removed.

[rowm-6] 3.0 ^3.1 ^3.2 Only dropped if Legends' Quest has been finished; if not, a talisman is dropped instead.

[7] The hard clue scroll drop rate increases to 1/12 after unlocking the hard Combat Achievements rewards tier.

[9] The elite clue scroll drop rate increases to 1/48 after unlocking the elite Combat Achievements rewards tier.

[10] The superior creature spawn rate increases to 1/150 after unlocking the elite Combat Achievements rewards tier.

[Alchemical_Hydra-3] 1.0 ^1.1 ^1.2 ^1.3 ^1.4 ^1.5 ^1.6 Jagex. Mod Munro's Twitter account. 13 February 2019. Archived from the original on 25 March 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."

[Clue_rates_tweet-8] Jagex. Mod Tide's Twitter account. 24 May 2019. Archived from the original on 24 May 2019. Mod Tide: "I know its been a while since the clue expansion but here is the information on clue scroll drop rates and loot chances! If anything changes I will keep you posted."

[d 1]

[d 1]

[1]

[d 1]

[d 2]

[d 3]

[d 1]

[d 2]

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Colossal Hydra

Contents

Drops