Nightmare Sower 
Creature — Faerie Assassin
$0.22 #13295 0.00 0.6 years
Flying, lifelink
Whenever you cast a spell during an opponent's turn, put a -1/-1 counter on up to one target creature.
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Cards similar to Nightmare Sower expected a card that isn't here?
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Dream Spoilers96%
$0.15↓#19257↓0.12↑3.0 years↑
"Whenever you cast a spell during an opponent's turn, up to one target creature an opponent controls gets -1/-1 until end of turn."
Dreamspoiler Witches94%
$0.26↑#23206↓0.29↑18.9 years↑
"Whenever you cast a spell during an opponent's turn, you may have target creature get -1/-1 until end of turn."
Gnarled Effigy82%
$0.18↓#27488↓0.24↑18.3 years↑
"
, 
: Put a -1/-1 counter on target creature."
, : Put a -1/-1 counter on target creature."
Healer's Flock80%
$0.22#17430↓0.53↑5.2 years↑
"Flying, lifelink"
Seraph of Dawn80%
$0.14↓#144540.0014.3 years↑
"Flying, lifelink"
Insatiable Harpy80%
$0.04↓#27166↓0.47↑12.9 years↑
"Flying, lifelink"
Blightcaster80%
$0.13↓#16949↓0.18↑13.1 years↑
"Whenever you cast an enchantment spell, you may have target creature get -2/-2 until end of turn."
Dreamstalker Manticore80%
$0.12↓#26487↓0.41↑6.6 years↑
"Whenever you cast your first spell during each opponent's turn, this creature deals 1 damage to any target."
Scar79%
$0.23↑#19614↓0.29↑18.3 years↑
"Put a -1/-1 counter on target creature."
Vish Kal, Blood Arbiter79%
$0.66↑#16054↓0.43↑15.2 years↑
"Flying, lifelink"
Cultbrand Cinder78%
$0.11↓#30299↓0.0018.3 years↑
"When this creature enters, put a -1/-1 counter on target creature."
Skinrender78%
$0.17↓#5738↑0.40↑15.9 years↑
"When this creature enters, put three -1/-1 counters on target creature."
Blight Rot78%
$0.25↑#9217↑0.000.6 years
"Put four -1/-1 counters on target creature."
Weed-Pruner Poplar78%
$0.15↓#26274↓0.29↑18.6 years↑
"At the beginning of your upkeep, target creature other than this creature gets -1/-1 until end of turn."
Gisela, the Broken Blade77%
$21.07↑#2576↑0.32↑10.1 years↑
"Flying, first strike, lifelink"
Volrath, the Shapestealer76%
$0.68↑#136020.50↑7.0 years↑
"At the beginning of combat on your turn, put a -1/-1 counter on up to one target creature."
Aerial Responder76%
$0.10↓#8743↑0.25↑9.9 years↑
"Flying, vigilance, lifelink"
Instill Infection76%
$0.11↓#23712↓0.0715.9 years↑
"Put a -1/-1 counter on target creature."
Fevered Convulsions76%
$0.66↑#22324↓0.42↑28.9 years↑
"
: Put a -1/-1 counter on target creature."
: Put a -1/-1 counter on target creature."
Grim Affliction76%
$0.31↑#4601↑0.33↑15.3 years↑
"Put a -1/-1 counter on target creature, then proliferate."