
{U}{U}: For each attacking creature without flying, its controller may pay {1}. If that player doesn't, creatures you control blocking that creature gain first strike until end of turn.
Tidal Flats has 3 printings, first in Fallen Empires (1994). EDHREC ranks it #28,878 among Commander cards. It appears most in Stockman, Mad Fly-entist decks (1 on EDHREC). It has 3 official rulings.
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.