Slayer bosses
Alchemical Hydra
“A ferocious Alchemical Hydra!”
The Alchemical Hydra is a boss version of hydra, found in the lower level of the Karuulm Slayer Dungeon in Mount Karuulm, requiring level 95 Slayer to kill. The Alchemical Hydra was the creation of a Dragonkin named Karuulm. While Karuulm 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.
Combat
Attack styles
- Ranged
Max hit
- 26 (Ranged)
Drops
| Item | Quantity | Rarity | Value |
|---|---|---|---|
 | 2 | always | 160 gp |
 | 40000-60000 | 1/15 | 1 gp |
 | 1 | 1/15 | 42,500 gp |
 | 1 | 1/15 | 42,500 gp |
 | 8-12 (noted) | 1/19 | 7,000 gp |
 | 2 | 1/19 | 13,480 gp |
 | 2-5 | 1/19 | 170 gp |
 | 1 | 1/19 | 288 gp |
 | 2 | 1/19 | 240 gp |
 | 150-400 | 1/23 | 90 gp |
 | 150-400 | 1/23 | 180 gp |
 | 150-400 | 1/23 | 400 gp |
 | 150-400 | 1/23 | 50 gp |
 | 30 (noted) | 1/23 | 160 gp |
 | 1 | 1/27 | 100,000 gp |
 | 1 | 1/46 | 100,000 gp |
 | 2 | 1/46 | 65,000 gp |
 | 1 | 1/69 | 200,000 gp |
 | 100-180 | 1/69 | 1,063 gp |
 | 10-15 (noted) | 1/88 | 18 gp |
 | 25-30 (noted) | 1/88 | 20 gp |
 | 2 | 1/91 | 64,000 gp |
 | 2 | 1/91 | 64,000 gp |
 | 10-15 (noted) | 1/109 | 30 gp |
 | 10-15 (noted) | 1/109 | 21 gp |
 | 25-30 (noted) | 1/109 | 22 gp |
 | 25-30 (noted) | 1/109 | 24 gp |
 | 1 | 1/136 | 120,000 gp |
 | 1 | 1/136 | 80,000 gp |
 | 35-70 | 1/136 | 15,000 gp |
 | 1 | 1/136 | 150 gp |
 | 25-30 (noted) | 1/146 | 23 gp |
 | 10-15 (noted) | 1/146 | 25 gp |
 | 1 | 1/245 | 100,000 gp |
 | 1 | 1/245 | 100,000 gp |
 | 1 | 1/245 | 100,000 gp |
 | 1 | 1/346 | 50,000 gp |
 | 1 | 1/381 | 100,000 gp |
 | 2-3 | 1/427 | 540 gp |
 | 2-3 | 1/427 | 650 gp |
 | 1 | 1/532 | 100,000 gp |
 | 2-3 | 1/570 | 50 gp |
 | 2-3 | 1/611 | 60 gp |
 | 2-3 | 1/707 | 254 gp |
 | 2-3 | 1/772 | 430 gp |
 | 2-3 | 1/776 | 70 gp |
 | 1 | 1/799 | 150,000 gp |
 | 30-45 | 1/855 | 56 gp |
 | 2-3 | 1/855 | 16 gp |
 | 2-3 | 1/900 | 422 gp |
 | 2-3 | 1/951 | 48 gp |
 | 2-3 | 1/951 | 48 gp |
 | 2-3 | 1/951 | 48 gp |
 | 2-3 | 1/951 | 143 gp |
 | 2-3 | 1/1015 | 1 gp |
 | 2-3 | 1/1228 | 115 gp |
 | 500-1000 | 1/1350 | 750 gp |
 | 500-1000 | 1/1350 | 167 gp |
 | 1 | 1/1957 | 1 gp |
 | 1 | 1/3069 | 1 gp |
Boss information and pictures from the Old School RuneScape Wiki (CC BY-NC-SA 3.0).