Alchemical Hydra — 95 Slayer Boss Money Making
Alchemical Hydra is the end-game Slayer boss in the Karuulm Slayer Dungeon. It needs 95 Slayer and a hydra task. Consistent bones/herbs/alchs are solid, but leather, claw, and brimstone pieces swing the real average. Learn the four phases before chasing KPH.
Skip if: You are under 95 Slayer, do not want task-locked PvM, or still die to basic prayer switches (fix Zulrah rotations first).
Wiki ~4.2M @ 25 kph incl. uniques
25 typical; 28 max gear
~120k no uniques; ~200k with
Phase prayers + poison
Hard gates
- 95 Slayer
- Hydra Slayer task
- Access to Karuulm Slayer Dungeon (Mount Karuulm / fairy ring CIR)
Recommended (soft)
- 85+ Ranged (primary style for most accounts); 75+ Defence / Hitpoints
- 74+ Prayer for Rigour; antidote++ or serpentine for poison
- Boots of brimstone, or devout boots with Kourend & Kebos Elite (hot floor)
- Rada's blessing 3/4 for dungeon teleport; 62 Agility shortcuts help
- Konar / Duradel hydra tasks; slaughter to extend
| Tier | Ranged setup |
|---|---|
| Budget | Toxic blowpipe + blessed d'hide / void, anguish, assembler, suffering (i), slayer helm (i) |
| Mid | Bowfa + crystal armour, or blowpipe with stronger jewellery; brimstone boots |
| Max | Twisted bow + masori, necklace of anguish, assembler, ring of the gods (i) / suffering, brimstone boots |
Melee (lance / scythe) exists for experienced players; ranged is the default learning path. Always wear a Slayer helm (i) on task.
- Divine ranging potion
- Prayer potions (Rigour + Protect)
- Antidote++ (unless immune via other means)
- Food: dark crabs / anglers; karambwans for combo eats on learning trips
- Nature + fire runes (or rune pouch) to high-alch mid-trip
- Rada blessing / house tele; teleport out for emergencies
- Hydra task → CIR / Rada tele → enter the Alchemical Hydra instance with boots that ignore the hot floor.
- Pot up. Opening green (poison) phase: Protect from Magic. Blue (lightning): Protect from Missiles. Red (flame): Protect from Magic. Final grey: alternate as it switches.
- DPS through each colour phase; on head change, switch prayer immediately and step off poison / fire / lightning patterns.
- Walk the boss so chemical pools and vents are not stacked on you; keep attacking between steps.
- Alch rune/mystic drops between kills to stay longer; note that bones may pile if inventory is full — longer trips still win KPH.
- Bank when prayer/food run out; pool → tele back.
- Four phases — green (poison, Protect Magic), blue (lightning, Protect Missiles), red (flame, Protect Magic), grey (final, prayer swaps as attacks alternate).
- Prayer switches on phase change — mistiming is the #1 death cause. Learn vent/pool telegraphs per colour.
- Poison — antidote++ or you will sip food constantly.
- Floor heat — boots of brimstone / diary devout boots; do not enter in normal boots.
- RuneLite plug-ins that highlight vents/pools help while learning; disable them once timings are automatic.
Wiki quotes ~4.2M/hr at 25 kph including uniques. Without leather/claw/brimstone parts, average kill value drops toward ~120k — still respectable but not "4M every hour."
- Stable: hydra bones, noted herbs, dragon weapons, runes, coins
- RNG:hydra leather, hydra's claw, eye/fang/heart (brimstone ring), jar, pet
- Supplies: prayer pots, ranging pots, antidote, darts/scales, food — hundreds of k/hr
Leather and claw prices move the meta hard — check GE Tracker before a multi-task grind.
- Wrong boots on the Karuulm hot floor
- Keeping the previous phase's prayer after a head change
- Standing in poison / fire patterns to squeeze one more attack
- Leaving without alch runes and banking every three kills
- Expecting claw/leather on a short Konar task sample size