Machinesmith Automaton 
Artifact Creature — Robot Villain
$0.17 #17896 0.00 0.2 years
Trample
Whenever another artifact you control enters, put a +1/+1 counter on this creature.
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Donatello, Way with Machines100%
$0.21↑#13634↑0.000.5 years
"Whenever an artifact you control enters, put a +1/+1 counter on this card."
Oreplate Pangolin99%
$0.14↓#165970.12↑1.1 years
"Whenever another artifact you control enters, you may pay 
. If you do, put a +1/+1 counter on this creature."
. If you do, put a +1/+1 counter on this creature."
Tidus, Blitzball Star96%
$0.18↑#12782↑0.38↑1.2 years↑
"Whenever an artifact you control enters, put a +1/+1 counter on this card."
Karstoderm96%
$0.05↓#31823↓0.35↑22.6 years↑
"Whenever an artifact enters, remove a +1/+1 counter from this creature."
Ingenious Smith96%
$0.16↓#13239↑0.005.1 years↑
"Whenever one or more artifacts you control enter, put a +1/+1 counter on this creature. This ability triggers only once each turn."
Yotian Dissident94%
$0.25↑#9912↑0.29↑3.8 years↑
"Whenever an artifact you control enters, put a +1/+1 counter on target creature you control."
Mm'menon, Uthros Exile92%
$0.25↑#9317↑0.061.1 years
"Whenever an artifact you control enters, put a +1/+1 counter on target creature."
Towashi Songshaper92%
$0.10↓#25896↓0.004.5 years↑
"Whenever another artifact you control enters, this creature gets +1/+0 until end of turn."
Perimeter Patrol92%
$0.04↓#30426↓0.003.8 years↑
"Whenever an artifact you control enters, this creature gets +1/+0 until end of turn."
Phalanx Vanguard92%
$0.04↓#27045↓0.27↑3.8 years↑
"Whenever an artifact you control enters, this creature gets +1/+0 until end of turn."
Glaze Fiend91%
$0.17#24361↓0.0017.9 years↑
"Whenever another artifact you control enters, this creature gets +2/+2 until end of turn."
Mandible Justiciar90%
$0.18↑#167340.24↑3.6 years↑
"Whenever another artifact you control enters, this creature gets +1/+1 until end of turn."
Elvish Archivist86%
$0.30↑#8625↑0.38↑3.0 years↑
"Whenever one or more artifacts you control enter, put two +1/+1 counters on this creature. This ability triggers only once each turn."
Vermiculos86%
$0.32↑#29210↓0.25↑22.9 years↑
"Whenever an artifact enters, this creature gets +4/+4 until end of turn."
Arcbound Crusher84%
$4.08↑#6012↑0.22↑22.6 years↑
"Whenever another artifact enters, put a +1/+1 counter on this creature."
Surge Conductor84%
$0.36↑#2751↑0.37↑1.1 years
"Whenever another nontoken artifact you control enters, proliferate."
Mechan Assembler84%
$0.28↑#10210↑0.16↑1.1 years
"Whenever another artifact you control enters, create a 2/2 colorless Robot artifact creature token. This ability triggers only once each turn."
Fateful Discovery84%
$5.99↑#13444↑0.000.1 years
"Whenever an artifact you control enters, draw a card."
Teething Wurmlet84%
$0.36↑#7732↑0.55↑3.8 years↑
"Whenever an artifact you control enters, you gain 1 life. If this is the first time this ability has resolved this turn, put a +1/+1 counter on this creature."
Kappa Cannoneer82%
$0.36↑#940↑0.64↑4.5 years↑
"Whenever this creature or another artifact you control enters, put a +1/+1 counter on this creature. It can't be blocked this turn."