
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.
Lavinia, Azorius Renegade has 10 printings, first in Ravnica Allegiance (2019). EDHREC ranks it #3,209 among Commander cards. It appears most in Grand Arbiter Augustin IV decks (7,967 on EDHREC). It has 4 official rulings.
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.