If you control a Spellcaster-Type monster and your opponent does not, your opponent cannot activate Spell Cards. If you control no Spellcaster-Type monsters, you cannot activate Spell Cards.
Near Mint Unlimited - $7.99
Lightly Played Unlimited - $6.99
Moderately Played Unlimited - $5.99
Heavily Played Unlimited - $4.99
Damaged Unlimited - $3.99