Black Dragon 
Creature — Dragon
$0.26 #15550 0.14 5.1 years
Flying
Acid Breath — When this creature enters, target creature an opponent controls gets -3/-3 until end of turn.
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Cards similar to Black Dragon expected a card that isn't here?
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+1 more matching line
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"When this creature enters, you may have target creature get -1/-1 until end of turn."
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"When this creature enters, target creature an opponent controls gets -2/-2 until end of turn."
Scorpion's Sting85%
$0.15↓#140900.221.0 years↓
"Target creature gets -3/-3 until end of turn."
Wring Flesh83%
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"Target creature gets -3/-1 until end of turn."
Fatal Fumes83%
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"Target creature gets -4/-2 until end of turn."
Tar Snare83%
$0.05↓#29907↓0.00↓10.6 years↑
"Target creature gets -3/-2 until end of turn."
Death Wind83%
$0.07↓#171640.56↑14.3 years↑
"Target creature gets -X/-X until end of turn."
Strangling Spores83%
$0.07↓#29142↓0.26↑8.1 years↑
"Target creature gets -3/-3 until end of turn."
Last Gasp83%
$0.04↓#166660.27↑20.9 years↑
"Target creature gets -3/-3 until end of turn."
Lash of the Whip83%
$0.03↓#28857↓0.57↑12.9 years↑
"Target creature gets -4/-4 until end of turn."
Grasp of Darkness83%
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"Target creature gets -4/-4 until end of turn."
Dark Deed83%
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"Target creature gets -4/-4 until end of turn."
Throttle83%
$0.06↓#28704↓0.25↑11.9 years↑
"Target creature gets -4/-4 until end of turn."