Each opponent can't cast noncreature spells with mana value 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 - $20.00
Lightly Played - $19.00
Moderately Played - $16.00
Heavily Played - $12.00
Damaged - $10.00
Near Mint Non-English - $20.00
Lightly Played Non-English - $19.00
Moderately Played Non-English - $16.00
Heavily Played Non-English - $12.00
Damaged Non-English - $10.00