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 if struck.
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 kills from the Drop Rate Project, unless otherwise cited.
The average Colossal Hydra kill is worth 225,498.63.
The average Colossal Hydra kill while on a Konar task is worth 227,655.89.
| Item |
Quantity |
Rarity |
Price |
High Alch |
 | Hydra bones | 1 | Always | 4,930 | 96 |
| Item |
Quantity |
Rarity |
Price |
High Alch |
 | Hydra's eye | 1 | 1/1,800.72; 1/360.72[d 1][d 2][1] | Not sold | 60,000 |
 | Hydra's heart | 1 | 1/1,800.72; 1/360.72[d 1][d 2][1] | Not sold | 60,000 |
 | Hydra's fang | 1 | 1/1,800.72; 1/360.72[d 1][d 2][1] | Not sold | 60,000 |
 | Hydra tail | 1 | 1/5,001; 1/1,001[d 1][1] | 79,768 | 60,000 |
 | Dragon thrownaxe | 200–400 | 1/10,000; 1/2,000[d 1][1] | 78,400–156,800 | 90,000–180,000 |
 | Dragon knife | 200–400 | 1/10,001; 1/2,001[d 1][1] | 359,800–719,600 | 20,000–40,000 |
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 All pre-roll item drop rates increase while on a hydra Slayer task.
- ↑ 2.0 2.1 2.2 The order players receive the items in are: Hydra's eye, Hydra's fang, and finally Hydra's heart.
| Item |
Quantity |
Rarity |
Price |
High Alch |
 | Black d'hide chaps | 1 | 3/128 | 3,692 | 3,732 |
 | Battlestaff | 2–3 (noted) | 2/128 | 16,304–24,456 | 8,400–12,600 |
 | Fire battlestaff | 1 | 5/128 | 8,984 | 9,300 |
 | Water battlestaff | 1 | 5/128 | 8,949 | 9,300 |
 | Rune kiteshield | 1 | 3/128 | 32,075 | 32,640 |
 | Rune platebody | 1 | 1/128 | 38,486 | 39,000 |
 | Mystic robe bottom | 1 | 1/128 | 47,573 | 48,000 |
 | Dragon longsword | 1 | 1/128 | 59,387 | 60,000 |
| Item |
Quantity |
Rarity |
Price |
High Alch |
 | Blood rune | 15–45 | 9/128 | 5,925–17,775 | 3,600–10,800 |
 | Chaos rune | 20–50 | 9/128 | 1,040–2,600 | 1,080–2,700 |
 | Death rune | 30–60 | 9/128 | 6,030–12,060 | 3,240–6,480 |
 | Fire rune | 70–90 | 9/128 | 350–450 | 140–180 |
 | Law rune | 30–60 | 9/128 | 4,530–9,060 | 4,320–8,640 |
 | Water rune | 70–90 | 9/128 | 350–450 | 140–180 |
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 | 21–63 | 7–21 |
 | Grimy marrentill | 1–3 | 1/170.7 | 23–69 | 8–24 |
 | Grimy tarromin | 1–3 | 1/227.6 | 119–357 | 9–27 |
 | Grimy harralander | 1–3 | 1/292.6 | 763–2,289 | 9–27 |
 | Grimy ranarr weed | 1–3 | 1/372.4 | 6,920–20,760 | 18–54 |
 | Grimy irit leaf | 1–3 | 1/512 | 684–2,052 | 10–30 |
 | Grimy avantoe | 1–3 | 1/682.7 | 1,805–5,415 | 10–30 |
 | Grimy kwuarm | 1–3 | 1/819.2 | 1,334–4,002 | 12–36 |
 | Grimy cadantine | 1–3 | 1/1,024 | 1,575–4,725 | 13–39 |
 | Grimy lantadyme | 1–3 | 1/1,365.3 | 1,478–4,434 | 13–39 |
 | Grimy dwarf weed | 1–3 | 1/1,365.3 | 448–1,344 | 14–42 |
| Grimy avantoe | 3 (noted) | 1/192 | 5,415 | 30 |
| Grimy ranarr weed | 3 (noted) | 1/240 | 20,760 | 54 |
 | Grimy snapdragon | 3 (noted) | 1/320 | 27,963 | 36 |
 | Grimy torstol | 3 (noted) | 1/320 | 23,751 | 45 |
There is a 4/128 chance of rolling the rare seed drop table.
There is a 2/128 chance of rolling the bolt tips 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] | 390 | 15 |
 | Uncut emerald | 1 | 1/1,024; 1/520[d 2] | 607 | 30 |
 | Uncut ruby | 1 | 1/2,048; 1/1,040[d 2] | 1,214 | 60 |
 | Nature talisman | 1 | 1/5,461.33; 1/2,773.33[d 2] | 1,080 | 2 |
 | Uncut diamond | 1 | 1/8,192; 1/4,160[d 2] | 2,812 | 120 |
 | Loop half of key | 1 | 1/16,384; 1/8,320[d 2] | 10,377 | 60 |
 | Tooth half of key | 1 | 1/16,384; 1/8,320[d 2] | 10,581 | 60 |
 | Rune javelin | 5 | 1/16,384; 1/8,320[d 2] | 805 | 1,200 |
 | Rune spear | 1 | 1/262,144; 1/15,600[d 2][d 3] | 11,899 | 12,480 |
 | Shield left half | 1 | 1/524,288; 1/31,200[d 2][d 3] | 65,465 | 66,000 |
 | Dragon spear | 1 | 1/699,050.67; 1/41,600[d 2][d 3] | 37,140 | 37,440 |
- ↑ Brimstone keys are only dropped if killed on a Slayer task.
The chance to spawn a superior creature is 1/200.
| Item |
Quantity |
Rarity |
Price |
High Alch |
 | Mist battlestaff | 1 | 1/46 | 68,979 | 9,300 |
 | Dust battlestaff | 1 | 1/46 | 19,550 | 9,300 |
 | Eternal gem | 1 | 1/160 | 7,766,469 | 5,700 |
 | Imbued heart | 1 | 1/160 | 26,138,869 | 300,000 |
- ↑ 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."
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