Cannot be Normal Summoned/Set. Must be Special Summoned (from your hand) by Tributing 1 Spellcaster-Type monster, and cannot be Special Summoned by other ways. This card gains 500 ATK for each card in your hand. Once per turn, during either player's turn, when a Spell Card is activated: You can negate the activation. If this card is destroyed by battle, or if this card in its owner's control is destroyed by an opponent's card effect: You can Special Summon 1 "Silent Magician" monster from your hand or Deck, except "Silent Magician", ignoring its Summoning conditions.
If this card is Normal Summoned: Place 1 Spell Counter on it (max. 1). This card gains 300 ATK for each Spell Counter on it. You can remove 1 Spell Counter from this card, then target 1 Spell/Trap Card on the field; destroy that target.
Once per turn: You can declare either Spell or Trap, then target 1 Set card in your opponent's Spell & Trap Card Zone; look at that target, and if it is the declared card type, that card cannot be activated this turn.