Blight Rot 
Instant
$0.28 #8917 0.04 0.7 years
Put four -1/-1 counters on target creature.
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Cards similar to Blight Rot expected a card that isn't here?
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Scar98%
$0.23↓#19802↓0.19↑18.5 years↑
"Put a -1/-1 counter on target creature."
Instill Infection96%
$0.09↓#24167↓0.35↑16.1 years↑
"Put a -1/-1 counter on target creature."
Skinrender96%
$0.23↓#5692↑0.69↑16.1 years↑
"When this creature enters, put three -1/-1 counters on target creature."
Cultbrand Cinder95%
$0.11↓#30659↓0.0018.5 years↑
"When this creature enters, put a -1/-1 counter on target creature."
Grim Affliction93%
$0.28#4567↑0.30↑15.4 years↑
"Put a -1/-1 counter on target creature, then proliferate."
Gnarled Effigy92%
$0.15↓#27769↓0.0718.5 years↑
"
, 
: Put a -1/-1 counter on target creature."
, : Put a -1/-1 counter on target creature."
Puncture Bolt91%
$0.24↓#23690↓0.0018.5 years↑
"this card deals 1 damage to target creature. Put a -1/-1 counter on that creature."
Fume Spitter91%
$0.19↓#11082↓0.27↑16.1 years↑
"Sacrifice this creature: Put a -1/-1 counter on target creature."
Grasp of Darkness90%
$0.09↓#11722↓0.24↑16.1 years↑
"Target creature gets -4/-4 until end of turn."
Lash of the Whip90%
$0.03↓#29073↓0.0613.1 years↑
"Target creature gets -4/-4 until end of turn."
Flatten90%
$0.05↓#28740↓0.0011.6 years↑
"Target creature gets -4/-4 until end of turn."
Throttle90%
$0.05↓#28982↓0.32↑12.1 years↑
"Target creature gets -4/-4 until end of turn."
Dark Deed90%
$0.21↓#16828↓0.130.3 years
"Target creature gets -4/-4 until end of turn."
Pull Under90%
$0.09↓#30429↓0.1222.1 years↑
"Target creature gets -5/-5 until end of turn."
Demon's Grasp90%
$0.13↓#27428↓0.0011.0 years↑
"Target creature gets -5/-5 until end of turn."
Eyes of the Beholder90%
$0.18↓#21672↓0.065.2 years↑
"Target creature gets -11/-11 until end of turn."
Festering Mummy90%
$0.19↓#12801↓0.009.5 years↑
"When this creature dies, you may put a -1/-1 counter on target creature."
Blur of Blades89%
$0.04↓#22521↓0.009.3 years↑
"Put a -1/-1 counter on target creature. this card deals 2 damage to that creature's controller."
Overkill89%
$0.31↑#2112↑0.32↑1.4 years
"Target creature gets -0/-9999 until end of turn."
Drown in Ichor89%
$1.05↑#2062↑0.21↑3.7 years↑
"Target creature gets -4/-4 until end of turn. Proliferate."