
At the beginning of your upkeep, if an opponent controls three or more creatures, sacrifice this enchantment, search your library for up to two creature cards, put those cards onto the battlefield, then shuffle.
Defense of the Heart has 9 printings, first in Urza's Legacy (1999). EDHREC ranks it #1,299 among Commander cards. It appears most in The Ur-Dragon decks (4,116 on EDHREC). It has 2 official rulings.
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.