Updated for Town Hall 18 (October 2026).
The Dark Spell Factory brews your Dark spells, from the Poison Spell at level 1 to the Angry Spell at level 8. It unlocks at Town Hall 8, and level 8 (Town Hall 15) has been the max since the June 2026 update. Building it adds exactly one slot of spell capacity; upgrading it unlocks new spells but never adds more space.
What the Dark Spell Factory does
Dark spells are the spells researched with Dark Elixir in the Laboratory. The Dark Spell Factory makes them and holds them until your next attack. Brewing is free and instant, so the only limit is spell housing space. The factory keeps working while it’s being upgraded, and losing it on defense changes nothing for you.
Your spell capacity is one shared pool. The regular Spell Factory supplies most of it, 2 slots per level up to 10 slots at level 5, and the Dark Spell Factory adds 1 on top, for a maximum of 11. You can fill that pool with any mix of Elixir and Dark spells.
Dark Spell Factory levels and the spell each unlocks
The building is 3×3 and you get one. Costs are in Elixir and are base values before Gold Pass discounts.
| Level | Spell unlocked | Spell space | Hitpoints | Cost (Elixir) | Upgrade time | Town Hall needed |
|---|---|---|---|---|---|---|
| 1 | Poison Spell | 1 | 600 | 130,000 | 6h | 8 |
| 2 | Earthquake Spell | 1 | 660 | 260,000 | 12h | 8 |
| 3 | Haste Spell | 1 | 720 | 600,000 | 2d | 9 |
| 4 | Skeleton Spell | 1 | 780 | 1,200,000 | 3d | 9 |
| 5 | Bat Spell | 1 | 840 | 2,500,000 | 5d | 10 |
| 6 | Overgrowth Spell | 2 | 950 | 4,000,000 | 6d | 12 |
| 7 | Ice Block Spell | 1 | 1,010 | 11,000,000 | 7d | 14 |
| 8 | Angry Spell | 1 | 1,070 | 18,000,000 | 10d | 15 |
Town Halls 16, 17 and 18 add no new Dark Spell Factory level, so a Town Hall 15 player can already own all eight Dark spells.
What each Dark spell is for
- Poison slows and damages defending Clan Castle troops, heroes and Skeletons, with damage that ramps up the longer they stay in it.
- Earthquake deals damage based on a percentage of max health to buildings and Walls. Each extra quake on the same spot does less. Since February 2026, levels 6 to 8 also hurt defending ground troops.
- Haste makes troops move much faster without boosting damage. It only gives heroes half the speed boost.
- Skeleton drops a group of Skeletons to distract defenses.
- Bat releases a stream of Bats that go straight for defenses.
- Overgrowth wraps buildings in a 6-tile radius, disabling defenses and making buildings untargetable for a while. It is the only Dark spell that takes 2 slots.
- Ice Block freezes your own troops in place: they can’t move or attack, but they take far less damage while the spell lasts.
- Angry, added in June 2026, makes your troops in its radius drop their target and attack the closest defense for a short time. It deals no damage, and Siege Machines ignore it.
Since most Dark spells cost just one slot, they fill the last spaces of a spell bar neatly, and Poison is the spell built for killing defending Clan Castle troops.
Donating and receiving Dark spells
Clanmates can donate Dark spells into your Clan Castle once it has spell space. A level 4 Castle holds 1 spell slot, level 7 holds 2, level 10 holds 3 and level 14 holds 4. Every Dark spell except Overgrowth fits into a single slot, which makes them the easiest spells to request at low Castle levels.
Recent Dark Spell Factory changes
- June 16, 2026 (“Anime Fury” update): level 8 and the Angry Spell.
- June 16, 2025: level 7 and the Ice Block Spell.
- March 24, 2025: brewing stopped taking any time, after brewing costs were removed in June 2022. Old advice about doubled brew times during upgrades and boosting the factory with Gems or Training Potions no longer applies.
- February 27, 2024: level 6 and the Overgrowth Spell.
Other Home Village army buildings
| Building | Unlocks at | What it does |
|---|---|---|
| Army Camp | TH1 | Holds trained troops |
| Barracks | TH1 | Trains Elixir troops |
| Laboratory | TH3 | Researches troop, spell and Siege Machine levels |
| Hero Hall | TH4 | Upgrades and assigns heroes |
| Spell Factory | TH5 | Brews Elixir spells |
| Dark Barracks | TH7 | Trains Dark troops |
| Blacksmith | TH8 | Unlocks and upgrades Hero Equipment |
| Workshop | TH12 | Builds Siege Machines |
| Pet House | TH14 | Unlocks and upgrades pets |
Dark Spell Factory FAQ
Does the Dark Spell Factory increase spell capacity?
Only once. Building it adds 1 spell slot. Upgrading it unlocks new Dark spells but adds no more space; extra capacity comes from the regular Spell Factory, up to 11 total.
What Town Hall unlocks the Dark Spell Factory?
Town Hall 8, with the Poison Spell. Level 2 (Earthquake) is also available at Town Hall 8.
What is the max Dark Spell Factory level?
Level 8, which needs Town Hall 15 and unlocks the Angry Spell.
Sources: Supercell release notes (Anime Fury update notes, Clash Anytime update notes) and in-game data.
