Skulduggery 
Instant
$0.05 #19925 0.00 9.1 years
Until end of turn, target creature you control gets +1/+1 and target creature an opponent controls gets -1/-1.
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Cards similar to Skulduggery expected a card that isn't here?
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Steal Strength98%
$0.12↑#30791↓0.0526.4 years↑
"Target creature gets +1/+1 until end of turn. Another target creature gets -1/-1 until end of turn."
Leeching Bite96%
$0.09↑#30673↓0.0515.4 years↑
"Target creature gets +1/+1 until end of turn. Another target creature gets -1/-1 until end of turn."
Consume Strength96%
$0.14↑#27711↓0.0025.4 years↑
"Target creature gets +2/+2 until end of turn. Another target creature gets -2/-2 until end of turn."
Rites of Reaping96%
$0.08↑#30543↓0.0014.0 years↑
"Target creature gets +3/+3 until end of turn. Another target creature gets -3/-3 until end of turn."
Rookie Mistake94%
$0.06↑#28544↓0.006.3 years↓
"Until end of turn, target creature gets +0/+2 and another target creature gets -2/-0."
Schismotivate94%
$0.35↑#26270↓0.0720.7 years↑
"Target creature gets +4/+0 until end of turn. Another target creature gets -4/-0 until end of turn."
Gurmag Rakshasa94%
$0.11↑#217660.061.5 years↓
"When this creature enters, target creature an opponent controls gets -2/-2 until end of turn and target creature you control gets +2/+2 until end of turn."
Monoist Circuit-Feeder90%
$0.14↑#211290.051.2 years↓
"When this creature enters, until end of turn, target creature you control gets +X/+0 and target creature an opponent controls gets -0/-X, where X is the number of artifacts you control."
Dissection Practice90%
$0.22↑#167640.030.5 years↓
"Up to one target creature gets -1/-1 until end of turn."
Borrowed Malevolence90%
$0.04↓#27690↓0.12↑10.2 years↑
"• Target creature gets +1/+1 until end of turn."
Subtle Strike88%
$0.06↑#199050.0010.1 years
"• Target creature gets -1/-1 until end of turn."
Azula Always Lies88%
$0.14↑#10722↑0.11↑0.9 years↓
"• Target creature gets -1/-1 until end of turn."
Sick and Tired84%
$0.08↑#31340↓0.0627.7 years↑
"Two target creatures each get -1/-1 until end of turn."
Zealous Persecution84%
$0.16↑#200580.30↑17.5 years↑
"Until end of turn, creatures you control get +1/+1 and creatures your opponents control get -1/-1."
Gloom Ripper84%
$0.23↑#11726↑0.080.7 years↓
"When this creature enters, target creature you control gets +X/+0 until end of turn and up to one target creature an opponent controls gets -0/-X until end of turn, where X is the number of Elves you control plus the number of Elf cards in your graveyard."
Drooling Groodion84%
$0.03↓#30486↓0.0621.0 years↑
"
, Sacrifice a creature: Target creature gets +2/+2 until end of turn. Another target creature gets -2/-2 until end of turn."
, Sacrifice a creature: Target creature gets +2/+2 until end of turn. Another target creature gets -2/-2 until end of turn."
Scorpion's Sting83%
$0.18↑#14039↑0.27↑1.1 years↓
"Target creature gets -3/-3 until end of turn."
Cankerous Thirst82%
$0.12↑#29558↓0.13↑18.2 years↑
"If was spent to cast this spell, you may have target creature get -3/-3 until end of turn. If was spent to cast this spell, you may have target creature get +3/+3 until end of turn."
was spent to cast this spell, you may have target creature get -3/-3 until end of turn. If was spent to cast this spell, you may have target creature get +3/+3 until end of turn."
Karai's Technique82%
$0.18↑#176080.11↑0.6 years↓
"• Target creature gets +3/+3 until end of turn."
Last Gasp82%
$0.05#15840↑0.0021.0 years↑
"Target creature gets -3/-3 until end of turn."