
Domain — At the beginning of each player's upkeep, that player gains 1 life for each basic land type among lands they control. Then this enchantment deals 3 damage to that player.
Collapsing Borders has 1 printing, first in Invasion (2000). EDHREC ranks it #24,210 among Commander cards. It appears most in Grizzlegom, Hurloon Hero decks (90 on EDHREC). It has 2 official rulings.
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.