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 - $11.50
Lightly Played Unlimited - $10.40
Moderately Played Unlimited - $9.20
Heavily Played Unlimited - $6.90
Damaged Unlimited - $5.80