Tetravus 
Artifact Creature — Construct
$1.48 #23762 0.28 32.5 years
Flying
This creature enters with three +1/+1 counters on it.
At the beginning of your upkeep, you may remove any number of +1/+1 counters from this creature. If you do, create that many 1/1 colorless Tetravite artifact creature tokens. They each have flying and "This token can't be enchanted."
At the beginning of your upkeep, you may exile any number of tokens created with this creature. If you do, put that many +1/+1 counters on this creature.
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Mikaeus, the Lunarch84%
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"this card enters with X +1/+1 counters on it."
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Benevolent Hydra83%
$0.89↓#2963↑0.363.8 years↓
"This creature enters with X +1/+1 counters on it."
Workhorse83%
$3.13↑#13222↑0.2128.2 years↓
"This creature enters with four +1/+1 counters on it."
Festercreep82%
$0.09↓#241760.09↓18.6 years↓
"This creature enters with a +1/+1 counter on it."
Spike Breeder82%
$0.30↓#269310.2528.5 years↓
"
, Remove a +1/+1 counter from this creature: Create a 1/1 green Spike creature token."
, Remove a +1/+1 counter from this creature: Create a 1/1 green Spike creature token."+1 more matching line
Shinewend82%
$0.25↓#193900.2718.6 years↓
"This creature enters with a +1/+1 counter on it."
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$0.71↓#10167↑0.79↑28.2 years↓
"This creature enters with three +1/+1 counters on it."
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"This creature enters with four +1/+1 counters on it."
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"This creature enters with a +1/+1 counter on it."
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"This creature enters with X +1/+1 counters on it."