Lavinia, Azorius Renegade is a rare Legendary Creature — Human Soldier card from Mystery Booster 2 (MB2), collector number 86. Current market price: $0.27, TCGplayer market prices via Scryfall.
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.