Collapsing Borders 
Enchantment
$0.34 #24000 0.19 25.9 years
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.
Click a line or tag to filter
Cards similar to Collapsing Borders expected a card that isn't here?
Reports become test cases the matcher is graded against before an update ships. Delvefall isn't a chatbot guessing, it compares the printed rules text of every card with plain math, and examples like yours decide which differences should count.
Mask of Intolerance88%
$0.28↓#30292↓0.50↑25.3 years
"At the beginning of each player's upkeep, if there are four or more basic land types among lands that player controls, this artifact deals 3 damage to that player."
Primal Order88%
$2.09↑#15794↑0.44↑30.9 years↑
"At the beginning of each player's upkeep, this enchantment deals damage to that player equal to the number of nonbasic lands they control."
Power Surge86%
$1.11↑#11497↑0.43↑33.1 years↑
"At the beginning of each player's upkeep, this enchantment deals X damage to that player, where X is the number of untapped lands they controlled at the beginning of this turn."
Copper Tablet80%
$56.45↑#15363↑0.1133.1 years↑
"At the beginning of each player's upkeep, this artifact deals 1 damage to that player."
Citadel of Pain78%
$4.17↑#6667↑1.11↑26.3 years
"At the beginning of each player's end step, this enchantment deals X damage to that player, where X is the number of untapped lands they control."
Price of Progress78%
$4.26↑#2810↑0.70↑28.2 years↑
"this card deals damage to each player equal to twice the number of nonbasic lands that player controls."
Flame Rift76%
$0.32↓#3984↑0.2026.6 years
"this card deals 4 damage to each player."
Rivalry76%
$0.38↑#255460.32↑27.6 years↑
"At the beginning of each player's upkeep, if that player controls more lands than each other player, this enchantment deals 2 damage to them."
Furnace Punisher76%
$0.07↓#211580.50↑3.6 years↓
"At the beginning of each player's upkeep, this creature deals 2 damage to that player unless they control two or more basic lands."
Rumbling Slum76%
$0.25↓#266390.79↑20.6 years↓
"At the beginning of your upkeep, this creature deals 1 damage to each player."
Acidic Soil76%
$0.49↑#8031↑0.73↑27.9 years↑
"this card deals damage to each player equal to the number of lands they control."
Cold Snap74%
$0.19↓#31267↓0.2531.3 years↑
"At the beginning of each player's upkeep, this enchantment deals damage to that player equal to the number of snow lands they control."
Barbed Wire74%
$1.77↑#13458↑0.40↑26.9 years
"At the beginning of each player's upkeep, this artifact deals 1 damage to that player."
Sunspine Lynx72%
$1.89↑#2813↑0.70↑2.1 years↓
"When this creature enters, it deals damage to each player equal to the number of nonbasic lands that player controls."
Karma72%
$0.19↓#19063↑0.63↑33.1 years↑
"At the beginning of each player's upkeep, this enchantment deals damage to that player equal to the number of Swamps they control."
Razor Pendulum72%
$0.53↑#30186↓0.2429.9 years↑
"At the beginning of each player's end step, if that player has 5 or less life, this artifact deals 2 damage to that player."
Centaur Peacemaker72%
$0.16↓#256420.00↓7.9 years↓
"When this creature enters, each player gains 4 life."
Roiling Vortex71%
$1.96↑#2476↑0.45↑5.9 years↓
"At the beginning of each player's upkeep, this enchantment deals 1 damage to them."
Putrid Warrior71%
$0.11↓#29605↓0.31↑25.3 years
"• Each player gains 1 life."
Antagonism71%
$0.41↑#254730.1027.9 years↑
"At the beginning of each player's end step, this enchantment deals 2 damage to that player unless one of their opponents was dealt damage this turn."