This deck, contary to what people think, only needs several cards to make the annoying combo, and they are as follow:
1) Grim Books Of Spell
2) Hygro Books Of Spell
3) Magical Summoner Temper
4) Magical Warrior Fors
5) Sorciere De Fleur
1) Torah Books Of Spell
2) Necro Books Of Spell
1) Breaker The Magical Warrior
2) Lyla, Lightsworn Sorceress
Grim Books of Spell work as a reinforcement of the army for Books Of Spells spell cards.
Hygro Books Of Spell:
Target 1 face-up Spellcaster-Type monster you control; it gains 1000 ATK until the End Phase. If that monster destroys an opponent's monster by battle this turn: You can add 1 "Book of Spell" Spell Card from your Deck to your hand. You can only activate 1 "Hygro Book of Spell" per turn.
And whats so special about that? Take a look at Magical Warrior Fors
Level 4/ Fire/ Spellcaster/ Effect
Once per turn: You can shuffle 1 "Book of Spell" Spell Card from your Graveyard into your Deck to target 1 face-up Spellcaster-Type monster you control; increase its Level by 1 and ATK by 500.
So basically, you activate Hygro Books Of Spell's effect on Fors, raising its attack to 2500, then activate Fors's effect, returning Hygro Books Of Spell to the deck, and raising Fors's attack to 3000.
This makes Fors a beatstick now, so use it to attack your opponent's monster, and when you destroy it, during the end phrase, Hygro Books Of Spell's effect will activate, allowing you to search out a Books Of Spell spell card, and you can search out Hygro Books Of Spell again or Grim Books Of Spells to filter your deck, searching for another Hygro Books Of Spell.
Fors's attack increment of 500 is PERMANENT, so next turn when you activate Hygro Books Of Spell and Fors's attack successively, you get a 3500 atk Fors, and next turn 4000 atk and so forth.
This is a really nasty combo which recyles cards back to deck, only to search them out during the end phrase again.
And if you are worried that Fors might get destroyed by effect. They have their own Forbidden lance as well, in the form of Torah Books Of Spell
Torah Books Of Spell:
Target 1 face-up Spellcaster-Type monster on the field; apply 1 of these effects.
● This turn, that target is unaffected by the effects of other Spell Cards.
● This turn, that target is unaffected by the effects of Trap Cards.
And this Forbidden Lance is also a "Books Of Spell" spell card, so you can use Grim Books Of Spell to search it out, or use Hygro Books Of Spell's effect to search it out. Fors can also recycle this card back to deck, allowing it to be used multiple times.
Next up is another sub combo in this deck, using Magical Summoner Temper
Level 3/ Earth/ Spellcaster/ Effect
During the Main Phase of the turn you activated a "Book of Spell" Spell Card: You can Tribute this card; Special Summon 1 Level 5 or higher LIGHT or DARK Spellcaster-Type monster from your Deck. You cannot Special Summon other Level 5 or higher monsters the turn you activate this effect.
Activate a Books Of Spell card on Fors or simply just use the Books of Spell card on Temper, then use Temper's effect to sp a big beatstick, Sorciere De Fleur from your deck:
Level 8/ Dark/ Spellcaster/ Effect
When this card is Normal or Special Summoned, select 1 monster in your opponent's Graveyard. Special Summon that monster to your side of the field. It cannot attack your opponent directly, and is destroyed during the End Phase of this turn. The effect of "Sorciere de Fleur" can only be activated once per turn.
Temper's effect helps to summon Sorciere fast and Sorciere works like a monster reborn for your opponent's grave! Use it to take something to exceed/synchro or just deal damage.
And finally, the last card is a premature burial for spellcasters, the Necro Books Of Spell
Banish 1 Spellcaster-Type monster from your Graveyard and reveal 1 "Book of Spell" Spell Card in your hand to target 1 Spellcaster-Type monster in your Graveyard; Special Summon it, and equip this card to that target. Increase the Level of the equipped monster by the Level of the banished monster. You can only activate 1 "Necro Book of Spell" per turn.
You banish one spellcaster, reveal 1 Books Of Spell card and you can sp a spellcaster from your graveyard, bring back Fors or Sorciere and use their effects again!
Overall, I think that Books Of Spell is a pretty fun archtype, and I would definitely be making one of these decks to test it out, and post decklists when I'm done.
Signing off for now :)