
{T}, Pay 1 life, Sacrifice this land: Search your library for a Plains or Swamp card, put it onto the battlefield, then shuffle.
Marsh Flats has 12 printings, first in Zendikar (2009). EDHREC ranks it #51 among Commander cards. It appears most in Y'shtola, Night's Blessed decks (22,298 on EDHREC).
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.