"The Spell Factory is home to veteran Wizards who are better suited to creating magical weapons than front-line combat. Use their powerful Attack Spells to turn the tide of a battle in your favor!"
The spells themselves can be used in battle by selecting a previously created spell and clicking on the enemy's village. The spell can be placed anywhere, bypassing Walls or buildings, and it cannot be destroyed by any defenses.
Although multiple instances of a single spell may be created (up to the maximum allowed by the spell storage capacity of the Spell Factory and Dark Spell Factory combined), each spell instance can only be used once. Once you have used a spell, you must create it again in order to use it in your next battle.
You will not lose your spells if your Spell Factory is destroyed during the defense of your village, nor will its destruction disrupt or pause spell creation in any way.
If you upgrade the Spell Factory while it is creating spells, the spells will continue brewing during the upgrade, and will be available as soon as they are complete. It is not possible to start creating new elixir spells during the upgrade. If you have any spells already created when you start the upgrade, you will be able to use these in a raid.
You can speed up the creation of spells with gems and there is also an ability to boost spell production for 1 hour. The boost option costs 10 Gems, and will increase the speed of the boosted Spell Factory by a factor of four.
Note: The boost timer will continue to count down even if you aren't creating spells, so don't boost your Spell Factory until you are ready to use it.
When you click to boost the Spell Factory a clock appears for a few seconds.
Players can donate spells to clanmates, provided that their Clan Castles are sufficiently upgraded to receive them.
A level 10 Clan Castle is required to hold the 3-space Clone Spell.
Upgrade Differences
Spell Factories undergo significant visual changes at each level.
When initially constructed, the Spell Factory consists of a gray metal cauldron with a valve and hand-wheel at the front. It is supported by a total of eight wooden legs lashed to the edges of the cauldron, and at the rear there is a slingshot-looking structure used to hold the massive stirring spoon while the Spell Factory is in operation.
At level 2, the Spell Factory cauldron changes from gray metal to bronze.
At level 3, the Spell Factory cauldron changes from bronze to gold. The ropes attaching the legs to the cauldron disappear and are replaced with three golden rails encircling the cauldron.
At level 4, the Spell Factory gains spiked metal armor protecting the four corners of the structure, similar to those found on some Gold Storages and Elixir Storages.
At level 5, the Spell Factory gains blue hexagons on the protective pads with golden spikes surrounding on each corner.
At level 6, the Spell Factory's corners turn into stone slabs in the shape of a pentagon. The slabs are white at the top and dark grey along with being slightly wider at the bottom. On the corners are shield-like objects with it being thinner and darker along the center. There are two spikes along the cut there.
When in operation, the Spell being created in the cauldron changes color at each level. Note that this coloring is dependent on the level of Spell Factory only, not on the type of spell being created (it is impossible for anyone other than the owner to determine which spell is being created, except if the Spell Factory is at level 1).
At level 1, the spell in the cauldron appears azure blue, resembling the Lightning Spell.
At level 2, the spell in the cauldron appears golden, resembling the Healing Spell.
At level 3, the spell in the cauldron appears deep purple, resembling the Rage Spell.
At level 4, the spell in the cauldron appears green, resembling the Jump Spell.
At level 5, the spell in the cauldron appears light blue, resembling the Clone Spell.
At level 6, the spell in the cauldron appears dark blue, resembling the Invisibility Spell.
Trivia
The level 4 Spell Factory is currently the only level that can unlock two spells at the same time namely the Jump Spell and the Freeze Spell.
When the December 2015 update made this the case, up until the introduction of the Clone Spell in mid-2016, the level 5 Spell Factory was also the only level of any army-training building that did not unlock any new units.
When you begin brewing a Spell, the spiral comes from bottom of the Factory and fills up.
Despite being "home to veteran wizards", there are no spell making Wizards to be seen. However, the Spell Factory and the Wizard are unlocked at the same Town Hall level (5).
As of the 1/7/15 Update, players can now queue extra spells in the Factory thus allowing players to "hide" Elixir in their factory. Currently a player can hide a maximum of 194,000 Elixir by queuing 1 level 5 Clone Spell and 5 level 4 Jump Spells in a level 5 Spell Factory if he already has 9/11 spell spaces occupied.
However, as of the 12/10/16 update, if you do this, you can no longer simultaneously hide Dark Elixir by queuing Dark spells.
Since there is no spell counterpart of the Army Camp which can hold spells, the Spell Factories takes the role of both creating and holding spells: the Spell Factory determines the main part of spell capacity, while the Dark Spell Factory increases the capacity by 1. For example, you'll have to upgrade the Spell Factory to level 5 (rather than upgrading the Dark Spell Factory) in order to hold 11 Dark Elixir spells.
Elixir spells' brewing times have been decreased multiple times.
When the Spell Factory was first added as part of the September 18th 2012 update, spells required Gold to brew. However, as of the November 6th 2013 update, spells now cost Elixir instead of Gold as it is today.
This was likely because it was difficult for players to farm gold as spells costed so much gold to brew.
In 2013, 2014, 2015, and 2016 October maintenance breaks, players were able to boost their Spell Factory for one Gem only. The 2015 October maintenance break was the first time that this applies to the Dark Spell Factory as well, which wasn't present in previous years.
If a spell has been brewed while the player is at the Builder Base, the Spell Factory, as well as the Dark Spell Factory, will still play the "spell brewed" sound when complete.
The level 6 Spell Factory as it appeared in the "Winter Champion" showcase video
In the "Winter Champion" video showcasing the Royal Champion's Winter Champion skin for the December 2020 season (made before the release of the December 2020 update), the level 6 Spell Factory was shown to originally have a Town Hall 13 theme, but was then changed to match a Town Hall 11 theme since it could be upgraded to level 6 at Town Hall 11.
For some reason, when brewing spells from a level 6 Spell Factory that unlocks the Invisibility Spell, the liquid color from the cauldron that represents the Invisibility Spell is blue despite the color of an Invisibility Spell being mint green.
Icon Descriptions
Tapping this icon displays information about the Spell Factory, such as Level, Spell Capacity and Hitpoints.
Tapping this icon begins upgrading the Spell Factory to the next level, if you have enough resources and a free Builder. When the Spell Factory is at maximum level, this icon is not shown.
Tapping this icon instantly upgrades the Spell Factory to the next level, at the cost of one Hammer of Building if you have one. When the Spell Factory is at maximum level, this icon is not shown.
Tapping this icon, which is displayed only while an upgrade is in progress, instantly finishes that upgrade at the cost of the displayed number of Gems.
Tapping this icon, which is displayed only while an upgrade is in progress, instantly finishes that upgrade at the cost of one Book of Building. This icon is only shown if you have at least one Book of Building.
Tapping this icon, which is displayed only while an upgrade is in progress, instantly finishes that upgrade at the cost of one Book of Everything. This icon is only shown if you have at least one Book of Everything but do not have a Book of Building.
Tapping this icon, which is displayed only while an upgrade is in progress, boosts all your Builders for 1 hour by a factor of ten, at the cost of one Builder Potion. This icon is only shown if you have at least one Builder Potion.
Tapping this icon, which is displayed only while an upgrade is in progress, cancels the current upgrade and refunds half of the upgrade cost.
Tapping this icon boosts your spell creation for 1 hour, reducing the time required to create spells by a factor of four for the duration of the boost.
Tapping this icon boosts your troop and Siege Machine training, spell brewing and hero regeneration for 1 hour, reducing the time by a factor of four for the duration of the boost, at the cost of one Training Potion. This icon is only shown if you have at least one Training Potion.
Tapping this icon resumes a paused boost to your Spell brewing. This icon is only shown if you have an active Spell brewing boost that was paused by a maintenance break.
Tapping this icon opens up the Spell Factory's interface, allowing you to brew spells.
Gold Pass modifiers
Input Gold Pass boost to modify the statistics in the tables below accordingly
