A Witcher's edge is chemical. Brew a consumable once and meditating refills it for the cost of a single strong alcohol (like Alcohest) — so stock up and use them freely.
The Four Consumable Types
Potions
Timed buffs. Essentials: Swallow (health regen), Thunderbolt (+attack), Tawny Owl (stamina/Sign regen), Cat (see in the dark).
Decoctions
Long-lasting, high-toxicity buffs from monster mutagens. Ekimmara (lifesteal) and Ancient Leshen are build-defining.
Oils
Coat your blade for +damage vs a monster class (Necrophage, Vampire, Relict, Beast…). Upgrade them to Enhanced/Superior for huge bonuses.
Bombs
Grapeshot (AoE damage), Dancing Star (fire), Northern Wind (freeze), Dimeritium (disables Signs/vampires).
Toxicity
Every potion/decoction adds Toxicity. Stay under your maximum or you take damage. The Alchemy skill tree raises safe toxicity and turns high toxicity into a damage buff (the "Acquired Tolerance" / "Refreshment" perks) — the core of a potion-heavy build.
Mutations (Blood and Wine)
Unlocked in Blood and Wine, Mutations are powerful capstone perks that also unlock extra skill slots. Standouts: Euphoria (toxicity & oils boost damage — the strongest build in the game), Piercing Cold (Aard freezes), and Second Life (auto-revive).
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