Alchemy, Oils & Bestiary Mastery
Death March isn't just "enemies hit harder." It fundamentally changes how you play. Geralt the Witcher becomes Geralt the Alchemist.
Contract from the Board: Kill the Griffin. Payment: 200 crowns. Missing Information: It's a Royal Griffin. It hits harder and has more health. Hybrid Oil works, but you're using Beast Oil.
You die.
The Oil Situation
There are 10 different monster types. Each type has a corresponding Oil that gives +50% damage. Using the wrong Oil means you're nerfing yourself.
The Problem: Bestiary entries unlock after you scan a creature. You can't prepare for monsters you haven't met. And the Oil names are confusing:
- Necrophage Oil (Ghouls, Alghouls, Drowners, Rotfiends)
- Specter Oil (Wraiths, Noonwraiths, Nightwraiths)
- Hybrid Oil (Griffins, Basilisks, Cockatrices)
You wouldn't guess that a Griffin needs Hybrid Oil. It has wings. Seems like a flying beast. Nope—it's a hybrid because it has a lion body and eagle head. Thanks, biology lesson.
The Encounter
I took a contract for a Leshen. Checked the Bestiary—weak to Igni and Relict Oil.
Problem: I didn't have Relict Oil crafted. I had:
- Beast Oil (wrong)
- Hanged Man's Venom (poison, useless here)
- Cursed Oil (wrong)
Do I fast travel back to a merchant? That costs time and breaks immersion. Do I fight without Oil? That's a 10-minute slog on Death March.
I screenshotted the contract description and asked: "What's this monster weak to and can I craft the oil?" Response: "Leshen. Weak to Dimeritium Bombs and Relict Oil. You have the ingredients: Dog Tallow, Erynia Eye, Ginatia Petals—craft at any fire."
Fixed in 30 seconds.
Gwent: The Mandatory Side Activity
Gwent isn't optional if you want the "Collect 'Em All" achievement. You need to win specific cards from specific NPCs before they leave the game.
Missables:
- Zoltan's card (talk to him in Novigrad before Act 2 ends)
- The Baron's card (beat him before he leaves Velen)
- Dijkstra's unique card (Priscilla quest before Kaer Morhen)
If you miss them? New playthrough. That's 80+ hours.
The Meta
Gwent has a meta. Northern Realms is beginner-friendly (card advantage through medics). Nilfgaard is control (spies). Monsters is unga-bunga (buff one card to 50+ power).
Advanced strategy:
- Bait Round 1: Opponent plays strong cards. You pass immediately (you lose Round 1 but keep card advantage).
- Win Round 2: Use your extra cards to overpower them.
- Dominate Round 3: They have 1-2 cards. You have 5+.
If you're stuck on a specific Gwent match (like the Passiflora tournament), screenshot the board state. Ask "What's my best play here?" You'll get optimal sequencing to win.
The Witcher Sense Treadmill
Contracts involve:
- Talk to NPC
- Follow red trail with Witcher Sense
- Examine 4-5 clues
- Follow another trail
- Fight the monster
Step 2-4 are tedious. You're crawling at walk speed, camera locked on the ground, looking for red highlights. It's where the pacing dies.
Shortcuts
Some contracts have hidden shortcuts:
- Jenny o' the Woods: Skip the investigation; go straight to the Abandoned Village at night. She spawns automatically.
- Shrieker Contract: The cockatrice nest is on the tall rock northwest of Crow's Perch. Skip the blood trail.
If you're stuck on "Find the [thing] using Witcher Sense," sometimes you can just ask where the thing is. The game wants you to enjoy combat, not pixel-hunt.
Alchemy Builds Are Broken (Use Them)
On Death March, Sign builds are flashy but Alchemy is efficient.
Core Perks:
- Acquired Tolerance (increases Toxicity based on alchemy recipes known)
- Tissue Transformation (each potion increases max HP by 1,000)
- Synergy (mutagen bonuses apply to equipped skills)
Potion Loadout:
- Thunderbolt (+Attack)
- Tawny Owl (+Stamina Regen)
- Swallow (+Healing)
With max Toxicity and Acquired Tolerance, you can run 4-5 potions simultaneously. You become immortal.
The catch: Requires crafting all the alchemy recipes. That's hours of gathering ingredients.
Ingredient Hell
You need:
- Dwarven Spirit (alcohol base—buy from Herbalists)
- Monster parts (Drowner Brain, Nekker Heart, etc.)
- Plants (White Gull, Blowball, Celandine)
Some ingredients are rare:
- White Gull requires Mandrake Cordial + Cherry Cordial + Redanian Herbal (all rare)
- Alchemy recipes require specific monster drops (Ekimmara Hide, Fiend Dung)
If you're missing one ingredient, the whole recipe is blocked. Instead of fast traveling to 6 herbalists, just ask "Where can I buy [ingredient]?" Instant answer with map locations.
Boss Fights: The Prep Checklist
Before Every Boss:
- Apply Oil (check monster type)
- Drink potions (3-5 depending on Toxicity)
- Eat food (+20min of regen)
- Repair gear (broken swords do 50% damage)
Missing step 1-2 makes fights twice as long.
Specific Bosses
Imlerith (Wild Hunt General):
- Use the oil listed in your Bestiary (if you haven't unlocked it yet, ask Otagon from a screenshot)
- Quen Sign for shield
- Dodge roll his shield bash (don't try to parry)
Caranthir:
- He spawns Ice Elementals—kill them ASAP or they overwhelm you
- Use Igni to melt his ice armor
- Aard knocks him down for free hits
Eredin (Final Boss):
- Phase 1: Standard sword combat
- Phase 2: He teleports—use Yrden to slow him
- Phase 3: Adds frost attacks—Quen is mandatory
If you're getting one-shot by a specific attack, ask about it. Sometimes bosses have mechanics you're supposed to counter with specific Signs or bombs.
The DLC Power Spike
Hearts of Stone and Blood & Wine add endgame content with unique mechanics:
HoS: Caretaker Boss
- He regens health by striking the shades he summons. Kill the shades immediately before he reaches them.
B&W: Dettlaff
- Phase 3: He spawns a swarm of bats. Run in circles. Don't fight—just survive for 30 seconds.
If you're undergeared, the DLC enemies will destroy you. Recommended Level 30+ for HoS, Level 35+ for B&W.
Grandmaster Gear
Blood & Wine adds Grandmaster Witcher sets (best armor in the game). Crafting requires:
- Diagrams (treasure hunts)
- Gold (15,000+ per set)
- Rare materials (Dimeritium Plates, Monster Essences)
If you're missing a diagram or material, screenshot your crafting screen. Ask "What do I need for Grandmaster Griffin?" You'll get a shopping list.
When Otagon Saves Time
Monster Weaknesses: Screenshot the contract, ask "What is this and what should I use?"
Gwent Optimization: Stuck in a match? Screenshot the board, ask "Best play?"
Ingredient Shopping: "Where can I buy/find [material]?" Better than Googling + checking 3 wikis.
Build Check: Screenshot your character sheet, ask "Is this build good?" Get roasted for putting points in Heavy Attack when you're using a Fast Attack build.
The game has 200+ hours of content. Don't waste 10 minutes on simple questions. Ask, get answer, move on.