Monoist Circuit-Feeder 
Artifact Creature — Nautilus
$0.13 #21143 0.24 1.1 years
Flying
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.
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Gurmag Rakshasa96%
$0.10↓#216080.06↓1.4 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."
Skulduggery92%
$0.06↓#195390.36↑8.9 years↑
"Until end of turn, target creature you control gets +1/+1 and target creature an opponent controls gets -1/-1."
Steal Strength90%
$0.10↓#30502↓0.2926.3 years↑
"Target creature gets +1/+1 until end of turn. Another target creature gets -1/-1 until end of turn."
Leeching Bite89%
$0.09↓#30271↓0.2115.3 years↑
"Target creature gets +1/+1 until end of turn. Another target creature gets -1/-1 until end of turn."
Consume Strength89%
$0.13#27438↓0.1825.3 years↑
"Target creature gets +2/+2 until end of turn. Another target creature gets -2/-2 until end of turn."
Rites of Reaping88%
$0.07↓#30365↓0.55↑13.9 years↑
"Target creature gets +3/+3 until end of turn. Another target creature gets -3/-3 until end of turn."
Rookie Mistake84%
$0.04↓#28286↓0.00↓6.2 years↑
"Until end of turn, target creature gets +0/+2 and another target creature gets -2/-0."
Schismotivate84%
$0.36↑#25964↓0.1920.6 years↑
"Target creature gets +4/+0 until end of turn. Another target creature gets -4/-0 until end of turn."
Gloom Ripper84%
$0.27↑#11933↑0.00↓0.6 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."
Dissection Practice82%
$0.24↑#173430.00↓0.4 years
"Up to one target creature gets -1/-1 until end of turn."
Cloudsculpt Technician82%
$0.04↓#245490.141.1 years
"Flying"
Irradiate82%
$0.04↓#27764↓0.1722.9 years↑
"Target creature gets -1/-1 until end of turn for each artifact you control."
Phyrexian Debaser82%
$0.04↓#28872↓0.05↓27.6 years↑
"Flying"
Azula Always Lies81%
$0.15↑#10780↑0.00↓0.8 years
"• Target creature gets -1/-1 until end of turn."
Borrowed Malevolence80%
$0.06↓#27457↓0.2110.1 years↑
"• Target creature gets -1/-1 until end of turn."
Subtle Strike80%
$0.05↓#197590.199.9 years↑
"• Target creature gets -1/-1 until end of turn."
Cartouche of Ambition79%
$0.14↑#15437↑0.06↓9.4 years↑
"When this Aura enters, you may put a -1/-1 counter on target creature."
Shefet Archfiend78%
$0.23↑#16065↑0.161.6 years
"Flying"
Keening Banshee77%
$0.12↓#27308↓0.00↓21.0 years↑
"When this creature enters, target creature gets -2/-2 until end of turn."
+1 more matching line
Fourth Bridge Prowler76%
$0.21↑#14512↑0.00↓9.6 years↑
"When this creature enters, you may have target creature get -1/-1 until end of turn."