
Each attacking creature gets +1/+0 until end of turn for each nonbasic land defending player controls.
Mercadia's Downfall has 2 printings, first in Mercadian Masques (1999). EDHREC ranks it #15,997 among Commander cards. It appears most in Zagorka, Mother of Sanctum decks (80 on EDHREC). It has 1 official ruling.
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.