Lavinia, Azorius Renegade is a special Legendary Creature — Human Soldier card from Time Spiral Remastered (TSR), collector number 380. Current market price: $0.92 (foil $9.58), 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.