Flying Octobot 
Artifact Creature — Robot Villain
$0.17 #15154 0.40 1.0 years
Flying
Whenever another Villain you control enters, put a +1/+1 counter on this creature. This ability triggers only once each turn.
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Cards similar to Flying Octobot expected a card that isn't here?
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Crossbones, Malicious Mercenary89%
$0.19↑#152040.00↓0.2 years
"Whenever another Villain you control enters, put a +1/+1 counter on this card. He deals 2 damage to each opponent. This ability triggers only once each turn."
Prowler, Clawed Thief86%
$0.17#7971↑0.27↓1.0 years
"Whenever another Villain you control enters, this card connives."
Scavenger Drake84%
$0.18↑#22233↓0.4017.9 years↑
"Flying"
Aven Sunstriker82%
$0.24↑#177150.00↓11.4 years↑
"Flying"
Yellowjacket, Heartless Marauder81%
$0.19↑#21381↓0.00↓0.2 years
"Whenever another Villain you control enters, this card gets +1/+0 and gains lifelink until end of turn."
Blessed Spirits80%
$0.13↓#20632↓0.00↓11.1 years↑
"Flying"
Scion of the Swarm78%
$0.11↓#172440.25↓5.9 years↑
"Flying"
Akroan Skyguard78%
$0.11↓#19504↓0.29↓12.6 years↑
"Flying"
Baron Strucker, HYDRA Overlord78%
$0.19↑#8776↑0.00↓0.2 years
"Whenever another Villain you control enters, you may have it connive. Do this only once each turn."
Citizen V, Helmut Zemo78%
$0.39↑#20573↓0.00↓0.2 years
"Whenever you gain life, put a +1/+1 counter on each Villain you control."
Iron Monger, Sadistic Tycoon77%
$0.31↑#10246↑0.00↓0.2 years
"Whenever a creature you control connives, put a +1/+1 counter on each Villain you control."
Francisco, Fowl Marauder77%
$0.25↑#6865↑0.07↓2.8 years↑
"Flying"
Herald of War76%
$2.53↑#3161↑0.30↓14.3 years↑
"Flying"
Stenchskipper76%
$0.31↑#29298↓0.18↓18.6 years↑
"Flying"
Abomination, Irradiated Brute75%
$0.41↑#19280↓0.00↓0.2 years
"Whenever a Gamma or Villain you control deals combat damage to a player, put that many +1/+1 counters on this card."
Aeronaut Cavalry75%
$0.07↓#24767↓0.00↓3.8 years↑
"Flying"
Scrounging Skyray75%
$0.26↑#7337↑0.13↓1.6 years
"Flying"
Kilnmouth Dragon74%
$0.73↑#173910.27↓23.6 years↑
"Flying"
Talion's Messenger74%
$0.27↑#9595↑0.06↓3.0 years↑
"Flying"
Savageborn Hydra74%
$0.46↑#11456↑0.3113.3 years↑
"This creature enters with X +1/+1 counters on it."