Each opponent can't cast noncreature spells with converted mana cost greater than the number of lands that player controls.
Whenever an opponent casts a spell, if no mana was spent to cast it, counter that spell.
"I told Jace that Ravnica would fall apart if he didn't take his responsibilities seriously. I didn't want to be right."
Near Mint - $1.00
Near Mint Non English - $1.00
Lightly Played - $0.95
Lightly Played Non English - $0.95
Moderately Played - $0.85
Moderately Played Non English - $0.85
Heavily Played - $0.75
Heavily Played Non English - $0.75
Damaged - $0.60
Damaged Non English - $0.60
Near Mint Foil - $2.50
Near Mint Foil Non English - $2.50
Lightly Played Foil - $2.40
Lightly Played Foil Non English - $2.40
Moderately Played Foil - $2.15
Moderately Played Foil Non English - $2.15
Heavily Played Foil - $1.90
Heavily Played Foil Non English - $1.90
Damaged Foil - $1.50
Damaged Foil Non English - $1.50