Defile 
Instant
$1.21 #984 0.25 7.4 years
Target creature gets -1/-1 until end of turn for each Swamp you control.
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Cards similar to Defile expected a card that isn't here?
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Quag Sickness93%
$0.04↓#20816↓0.3316.3 years↑
"Enchanted creature gets -1/-1 for each Swamp you control."
Mutilate90%
$0.24↓#2395↓0.39↑24.7 years↑
"All creatures get -1/-1 until end of turn for each Swamp you control."
Desert's Due83%
$0.11↓#24379↓0.11↓2.5 years↓
"Target creature gets -2/-2 until end of turn. It gets an additional -1/-1 until end of turn for each Desert you control."
Drag Down83%
$0.04↓#29166↓0.07↓17.7 years↑
"Target creature gets -1/-1 until end of turn for each basic land type among lands you control."
Liliana of the Dark Realms82%
$8.42↑#2146↓0.39↑14.3 years↑
"−3: Target creature gets +X/+X or -X/-X until end of turn, where X is the number of Swamps you control."
Tendrils of Corruption80%
$0.15↓#9025↓0.1820.0 years↑
"this card deals X damage to target creature and you gain X life, where X is the number of Swamps you control."
Grasp of Darkness80%
$0.09↓#11722↓0.2416.1 years↑
"Target creature gets -4/-4 until end of turn."
Lash of the Whip80%
$0.03↓#29073↓0.06↓13.1 years↑
"Target creature gets -4/-4 until end of turn."
Flatten80%
$0.05↓#28740↓0.00↓11.6 years↑
"Target creature gets -4/-4 until end of turn."
Throttle80%
$0.05↓#28982↓0.3212.1 years↑
"Target creature gets -4/-4 until end of turn."
Dark Deed80%
$0.21↓#16828↓0.13↓0.3 years↓
"Target creature gets -4/-4 until end of turn."
Pull Under80%
$0.09↓#30429↓0.12↓22.1 years↑
"Target creature gets -5/-5 until end of turn."
Demon's Grasp80%
$0.13↓#27428↓0.00↓11.0 years↑
"Target creature gets -5/-5 until end of turn."
Eyes of the Beholder80%
$0.18↓#21672↓0.06↓5.2 years↓
"Target creature gets -11/-11 until end of turn."
Overkill80%
$0.31↓#2112↓0.321.4 years↓
"Target creature gets -0/-9999 until end of turn."
Priest of the Haunted Edge78%
$0.14↓#14946↓0.00↓5.7 years↓
"
, Sacrifice this creature: Target creature gets -X/-X until end of turn, where X is the number of snow lands you control. Activate only as a sorcery."
, Sacrifice this creature: Target creature gets -X/-X until end of turn, where X is the number of snow lands you control. Activate only as a sorcery."
Gwyllion Hedge-Mage78%
$0.15↓#29376↓0.06↓18.2 years↑
"When this creature enters, if you control two or more Swamps, you may put a -1/-1 counter on target creature."
Consuming Corruption78%
$0.21↓#2411↓0.12↓2.3 years↓
"this card deals X damage to target creature or planeswalker and you gain X life, where X is the number of Swamps you control."
Fatal Fumes76%
$0.07↓#28849↓0.12↓13.5 years↑
"Target creature gets -4/-2 until end of turn."
Last Gasp76%
$0.05↓#15840↓0.00↓21.0 years↑
"Target creature gets -3/-3 until end of turn."