Suspicious Duo

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.
"You know how much I love watching you work, but I've got my country's 50 0 th anniversary to plan, my wedding to arrange, my wife to murder and Guilder to frame for it; I'm swamped."