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 - $9.80
Lightly Played Unlimited - $9.40
Moderately Played Unlimited - $8.00
Heavily Played Unlimited - $7.00
Damaged Unlimited - $5.00