The Grimoire is a minigame added on July 15, 2017, Version 2.0034. It is unlocked by spending one sugar lump to upgrade Wizard Towers to level 1.
It has several spells that can be cast:
 ↑ Bugged at the moment. Currently compares the base fail rate (15% standard; 1.5% with Magic adept; 65% with Magic inept) to a flat fail rate of 50%, and picks the higher of the two.
Each spell costs magic to use. Your maximum amount of magic varies depending on your amount of wizard towers, as well as their building level. Magic refills over time; the lower your magic meter, the slower it refills. Alternatively, up to 100 can be refilled instantly by using a sugar lump.
Selling wizard towers will reduce the maximum limit of the magic meter, but not the current magic (unless the new maximum limit is below the current magic). This allows casting Force the Hand of Fate once, then selling wizard towers to reduce the cost of a second cast. For instance, at 100 magic / 100 max magic, the first Force spell would cost 70 magic, leaving 30 magic available. Selling towers to reduce the maximum magic to 30 will make the cost of a second Force spell to go down to 28 magic, effectively allowing a double cast without the use of a sugar lump. This exploit can be used for an easier and less expensive way to get the Fourleaf cookie shadow achievement.
Conjure Baked GoodsEdit
An optimal strategy for using the "Conjure Baked Goods" spell would be to wait until you have a large production multiplier. A good time to cast it is when the golden cookie effect "Frenzy" and the wrath cookie effect "Elder frenzy" are both active, as this will earn you 30 minutes of x4662 your cookie production. It is also possible to gain even larger multipliers, for example with the help of Force the Hand of Fate. (It is limited to 15% of the current bank so plan accordingly.)
Outcome of Force the Hand of FateEdit
The mechanism of this spell follows a random list mechanism.
For golden cookie, the rules are:
 Add Frenzy and Lucky to a pool.
 If there is no Dragonflight buff active, add Click Frenzy.
 10% chance to add Storm (added twice) and Blab to the pool.
 25% chance to add Building Special, if you own more than or equal to 10 total buildings.
 For all buildings of which you own more than or equal to 10, choose one and buff according to the chosen building's amount. If no building has such quantity, choose Frenzy.
 15% chance to replace the pool with Storm Drop.
 0.01% chance to add Free Sugar Lump to the pool.
 Pick a random effect from the pool.
In the following, we assume at least one building's number is more or equal to 10.
The final results are:
No Dragonflight buff  

Frenzy=Lucky=C. Frenzy  Storm  Blab  Building  StormDrop  Sugar  
Exact  $ \frac{566086723}{2240000000} $  $ \frac{1223983}{44800000} $  $ \frac{1223983}{89600000} $  $ \frac{113897773}{2240000000} $  $ \frac{59997}{400000} $  $ \frac{60133}{2240000000} $ 
Approx.  25.27172871%  2.732104911%  1.366052455%  5.084722009%  14.99925%  0.002684508929% 
With Dragonflight buff  

Frenzy=Lucky  Storm  Blab  Building  StormDrop  Sugar  
Exact  $ \frac{410933877}{1120000000} $  $ \frac{4561593}{140000000} $  $ \frac{4561593}{280000000} $  $ \frac{3014593}{44800000} $  $ \frac{59997}{400000} $  $ \frac{7341}{224000000} $ 
Approx.  36.69052473%  3.258280714%  1.629140357%  6.729002232%  14.99925%  0.003277232143% 
For wrath cookie (backfire), the rules are:
 Add Clot and Ruin to a pool.
 10% chance to add Cursed Finger and Elder Frenzy to the pool.
 0.3% chance to add Free Sugar Lump to the pool.
 10% chance to replace the pool with Blab.
 Pick a random effect from the pool.
The final result is:
Clot=Ruin  Cursed Finger=Elder Frenzy  Sugar  Blab  

Exact  $ \frac{854163}{2000000} $  $ \frac{44973}{2000000} $  $ \frac{27}{31250} $  $ \frac{1}{10} $ 
Exact  42.70815%  2.24865%  0.0864%  10% 
ManipulationEdit
Oddly enough, the seed used to determine the outcome of casting a spell is stored in your savefile as for version v2.0042. More specifically the result of casting any spell is based on your game seed (this is changed only on ascension) and your total number of spells cast. This means that if you save the game, cast a spell, reload the game, and cast the same spell, the outcome will be the same. However, because Force the Hand of Fate uses Golden Cookie mechanics, there may be extra randomness checks before determining the specific bonus from the cookie and each additional check may change the outcome of the spell. These checks occur after determining whether the spell backfires so they have no effect on whether or not the spell backfires, they do however affect the outcome of Wrath Cookies spawned by backfires in the same way.
Extra randomness checks  Golden cookie sound  

Season  On  Off 
Valentine's Day or Easter  +2  +1 
any other season  +1  0 
This means that depending on your settings the cookie from the spell may have up to 3 different results. Note however that the result is still deterministic so casting with the same number of spells cast total, same season and same golden cookie sound setting will always yield the same result. This gives the player the opportunity to get different results without having to cast additional spells, provided that the player has unlocked Golden cookie alert sound and/or Season switcher Heavenly upgrades.
Since the result is deterministic you can check in advance to see whether a spell will have a favorable outcome, and then use that spell at a later time with predictable results. One application of this is using Force the Hand of Fate to confirm either a Click Frenzy or Elder Frenzy cookie will be generated and use that during a Frenzy, Building Special, and/or Dragonflight buff.
Also, whether a spell will backfire or not is also deterministic, not tied to each specific spell (note, however, that because Force the Hand of Fate has an additional chance to fail depending on the number of golden cookies on screen, the spell may fail even though other spells would not). This can be manipulated so that the backfire can be "wasted" on a spell that won't have as much of an impact, such as using it on Diminish Ineptitude to make it cause backfires to occur 5 times more likely for 10 minutes, and then not use spells during those 10 minutes, or use it on Haggler's Charm to cause upgrades to be 2% more expensive for an hour when no upgrades are available to purchase, or are too expensive to purchase within the hour.
Spontaneous Edifice mechanicsEdit
Building quantity achievements will remain locked when the player reaches a certain threshold using Spontaneous Edifice. Simply save and refresh the game to have them unlocked.
The total number of Wizard towers needed to cast the Spontaneous Edifice spell at each building level (up to 50) is as follows:


Magic recharge timeEdit
The maximum magic, M, one can have is determined by the following formula:
 $ M = \left\lfloor 4 + T^{0.6} + 15 \ln\left( 1 + \frac{T + 10(L  1)}{15} \right) \right\rfloor $
Where T is the amount of wizard towers owned and L is the level of the wizard towers. How the magic, M, increases over time, starting from empty at T=0, can be approximated by the following formula:
 $ m(t) = \begin{cases}\frac{10^{6}}{\overline{M}}(1800t+\overline{M})^2&,t\ge \frac{\overline{M}}{1800}\\ 0.0072t&,0\le t< \frac{\overline{M}}{1800}\end{cases} $
 $ \overline{M}=\max(100,M) $
Where time, t, is in minutes. Notice that when L=1 and T<=530, M=100. In most cases, we can approximate M with the quadratic equation only. To estimate how long it takes in minutes to reach the target amount of magic, use the following formula:
 $ \frac{5\sqrt{\overline{M}}}{9} \left( \sqrt{m_f}  \sqrt{m_i} \right) $
Where m_{i} is the current amount of magic available and m_{f} is the desired amount of magic. This time may vary from the actual time taken due to the game running at different frame rates (e.g. when running in the background versus in the foreground). By these calculations, it takes roughly 56 minutes to fully recharge a completely empty magic meter when M=100.
Optimal max limitsEdit
Spells can be repeatedly cast as long as there is enough magic in the magic meter to cast it. For every spell, there is an optimal value for the max limit of magic, which allows the magic to regenerate in the shortest amount of time. These values and times are recorded in the table below. Some spells have inconveniently low limits, like the 7 of Conjure Baked Goods, so good alternatives have been listed as well.
Name  Optimal Max Magic  Cost to Cast  Time Until Recharged 

Conjure Baked Goods  7  4  305 seconds 
9  5  333 seconds  
12  6  338 seconds  
Force the Hand of Fate  33  29  1248 seconds 
38  32  1238 seconds  
43  35  1243 seconds  
Stretch Time  44  16  447 seconds 
49  17  448 seconds  
54  18  449 seconds  
Spontaneous Edifice  93  89  2548 seconds 
97  92  2538 seconds  
101  95  2546 seconds  
Haggler's Charm  79  17  338 seconds 
89  18  336 seconds  
99  19  335 seconds  
Summon Crafty Pixies  54  20  506 seconds 
59  21  506 seconds  
64  22  506 seconds  
Resurrect Abomination  89  28  541 seconds 
99  29  528 seconds  
109  30  540 seconds  
Diminish Ineptitude  24  9  342 seconds 
29  10  342 seconds  
34  11  345 seconds 
With this information, we can see that casting Haggler's Charm with 99 max magic is the fastest way to cast spells, but casting Conjure Baked Goods with low max magic is a good alternative while remaining useful in getting cookies.
AchievementsEdit
Icon  Name  Description  ID 

Bibbidibobbidiboo  Cast 9 spells.  321  
I'm the wiz  Cast 99 spells.  322  
A wizard is you  Cast 999 spells. "I'm a what?"  323 
TriviaEdit
 Bibbidibobbidiboo is a reference to Disney's Cinderella.
 "A wizard is you" is a reference to "A winner is you," a meme from Nintendo Pro Wrestling.
 The description "I'm a what?" is a reference to Harry Potter.
 The Stretch Time spell can be purposely backfired to shorten Clots or other negative effects by 10 minutes max, which can be very, very useful.
 "I'm the wiz" is a reference to a character in the Seinfeld episode "The Junk Mail"
 The flavor text of Haggler's Charm, "What's that spell? Loadsamoney!", is a reference to the song Loadsamoney (Doing up the house) by Harry Enfield, featuring the lines "What's that spell? Loadsamoney, probably".
 Conjure Baked Goods gives a base amount of cookies of 7 when used at a CPS of 0. The only way to get this is through the use of it during a Cursed Finger Wrath Cookie effect, due to always having CPS above 0 when using the spell (it is required to own Wizard Towers in order to use spells), but Cursed Finger sets your CPS to 0 for the duration of the effect.
 Golden Cookies spawned from the Force the Hand of Fate spell are glitched  Cookie Chains don't usually go beyond the initial cookie, using the spell (regardless of outcome or effect) during a cookie chain will cause the next Golden Cookie in the chain to give a different effect (such as a Frenzy, Lucky or Clot if Wrath), and "Lucky" can give less than 15 minutes worth of cookies, even when owning sufficient cookies for 15 minutes worth to be the lower value, giving as low as 1 minute's worth of cookies. These are also not counted in "Golden cookie clicks" on the stats page and can not unlock the Golden Cookie upgrades.
 If you happen to backfire, you can reload the page (or use "save to file" before casting and load from file after backfire) to basically turn back time (so long as you haven't saved). The game probably won't have been saved so it will load the page with your magic refunded and it will seem like you haven't cast a spell at all. This may be considered cheating, so don't use this if you aren't willing to deal with the consequences.
 When Resurrect Abomination backfires while you have no wrinklers it displays "Backfire! But no wrinkler was harmed." Outside of the Grandmapocalypse, it will say "Unable to spawn a wrinkler!" if the cast is successful. By attempting to cast this before starting the Grandmapocalypse (or during an Elder Pact/Pledge), you can use this information to determine if the next spell will backfire or not.
 Upon receiving a backfire for Conjure Baked Goods, if you get "Clot" from a Wrath Cookie during the 15 minutes of CpS reduction, it will completely refill the timer of the backfire, rather than give the normal "Clot" duration of CpS reduction.
 The "Just Wrong" achievement can be unlocked by losing a grandma to Spontaneous Edifice backfiring.
Minigames  

Garden  Stock Market (beta)  Pantheon  Grimoire  
Minigames overview • Category:Minigames 