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 - $25.40
Lightly Played Unlimited - $24.20
Moderately Played Unlimited - $21.60
Heavily Played Unlimited - $19.10
Damaged Unlimited - $17.80