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 - $12.55
Lightly Played Unlimited - $12.05
Moderately Played Unlimited - $10.25
Heavily Played Unlimited - $9.00
Damaged Unlimited - $6.40