Raffine's Silencer {2}{B}
Creature — Human Assassin
When this creature enters, it connives. (Draw a card, then discard a card. If you discarded a nonland card, put a +1/+1 counter on this creature.)
When this creature dies, target creature an opponent controls gets -X/-X until end of turn, where X is this creature's power.
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Cards that do something similar expected a card that isn't here?
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Splatter Goblin 99%
$0.12#25311
"When this creature dies, target creature an opponent controls gets -1/-1 until end of turn."
Shambling Goblin 99%
$0.17#21058
"When this creature dies, target creature an opponent controls gets -1/-1 until end of turn."
Grim Physician 99%
$0.18#21871
"When this creature dies, target creature an opponent controls gets -1/-1 until end of turn."
Loathsome Catoblepas 95%
$0.02#31491
"When this creature dies, target creature an opponent controls gets -3/-3 until end of turn."
Festering Newt 95%
$0.14#21340
"When this creature dies, target creature an opponent controls gets -1/-1 until end of turn. That creature gets -4/-4 instead if you control a creature named Bogbrew Witch."
Gnawing Vermin 88%
$0.33#9740
"When this creature dies, target creature you don't control gets -1/-1 until end of turn."
Undead Executioner 83%
$0.07#29441
"When this creature dies, you may have target creature get -2/-2 until end of turn."
Slaughterhouse Bouncer 83%
$0.03#30740
"When this creature dies, if you have no cards in hand, target creature gets -3/-3 until end of turn."
Festering Goblin 81%
$0.13#18383
"When this creature dies, target creature gets -1/-1 until end of turn."
Obscura Interceptor 98%
$0.22#18746
"When this creature enters, it connives. When it connives this way, return up to one target spell to its owner's hand."