Mm'menon, Uthros Exile 
Legendary Creature — Jellyfish Advisor
$0.25 #9069 0.00 1.2 years
Flying
Whenever an artifact you control enters, put a +1/+1 counter on target creature.
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Cards similar to Mm'menon, Uthros Exile expected a card that isn't here?
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Yotian Dissident98%
$0.23↓#100600.45↑3.9 years↑
"Whenever an artifact you control enters, put a +1/+1 counter on target creature you control."
Donatello, Way with Machines94%
$0.20↓#13242↓0.20↑0.6 years
"Whenever an artifact you control enters, put a +1/+1 counter on this card."
Machinesmith Automaton94%
$0.15↓#16390↓0.15↑0.3 years
"Whenever another artifact you control enters, put a +1/+1 counter on this creature."
Oreplate Pangolin92%
$0.15↓#16595↓0.001.2 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 Star91%
$0.22↓#12726↓0.061.4 years
"Whenever an artifact you control enters, put a +1/+1 counter on this card."
Karstoderm90%
$0.08↓#32143↓0.0022.7 years↑
"Whenever an artifact enters, remove a +1/+1 counter from this creature."
Ingenious Smith90%
$0.18↓#13122↓0.005.2 years↑
"Whenever one or more artifacts you control enter, put a +1/+1 counter on this creature. This ability triggers only once each turn."
Glaze Fiend84%
$0.19↓#24704↓0.0018.0 years↑
"Whenever another artifact you control enters, this creature gets +2/+2 until end of turn."
Towashi Songshaper84%
$0.11↓#26286↓0.12↑4.7 years↑
"Whenever another artifact you control enters, this creature gets +1/+0 until end of turn."
Perimeter Patrol84%
$0.05↓#30820↓0.003.9 years↑
"Whenever an artifact you control enters, this creature gets +1/+0 until end of turn."
Phalanx Vanguard84%
$0.07↓#27483↓0.003.9 years↑
"Whenever an artifact you control enters, this creature gets +1/+0 until end of turn."
Markov Dreadknight83%
$0.15↓#23714↓0.0610.5 years↑
"Flying"
Veil of Assimilation82%
$0.11↓#18833↓0.003.7 years↑
"Whenever this artifact or another artifact you control enters, target creature you control gets +1/+1 and gains vigilance until end of turn."
Mandible Justiciar82%
$0.19↓#17024↓0.19↑3.7 years↑
"Whenever another artifact you control enters, this creature gets +1/+1 until end of turn."
Surge Conductor82%
$0.33↑#2595↑0.45↑1.2 years
"Whenever another nontoken artifact you control enters, proliferate."
Thopter Architect82%
$0.15↓#23250↓0.053.9 years↑
"Whenever an artifact you control enters, target creature gains flying until end of turn."
Arcbound Crusher80%
$4.10↑#6070↑0.47↑22.7 years↑
"Whenever another artifact enters, put a +1/+1 counter on this creature."
Ravenhill Flock80%
$0.22↓#16212↓0.20↑0.2 years↓
"Flying"
Elvish Archivist80%
$0.30↑#89150.19↑3.1 years↑
"Whenever one or more artifacts you control enter, put two +1/+1 counters on this creature. This ability triggers only once each turn."
Captain Storm, Cosmium Raider80%
$0.25#6159↑0.14↑2.9 years↑
"Whenever an artifact you control enters, put a +1/+1 counter on target Pirate you control."