Target 1 Spellcaster-Type monster on the field and activate 1 of these effects; ● That face-up monster is unaffected by other Spell effects this turn. ● That face-up monster is unaffected by Trap effects this turn.
Makes a Spellcaster immune to either Spells or Traps.
Can only make the target immune to one kind of card.
If you suspect your opponent has a battle trap, keep this card in your hand to use during the battle. If not, you can set it just before you end your Main Phase.
Can be used to waste your the opponent’s resources spent on a removal effect.
Has good utility in any Spellcaster deck. Some examples include Dark Magician, Magician Girl, and Gravekeeper.
Spellbook of Secrets and Spellbook Magician of Prophecy are the main ways you will search any Spellbook Spell. Aside from that you can recover a banished Spellbook of Wisdom back to your hand with Spellbook of Eternity.