Steadfast Sentry 

Creature — Human Soldier
$0.06 #27536 0.48 7.2 years
Vigilance (Attacking doesn't cause this creature to tap.)
When this creature dies, put a +1/+1 counter on target creature you control.
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Cards similar to Steadfast Sentry expected a card that isn't here?
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"When this creature dies, put a +1/+1 counter on target creature you control."
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"When this creature dies, put a +1/+1 counter on target creature you control."
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$0.19↑#236880.27↓7.9 years
"When this creature dies, put a +1/+1 counter on target creature you control."
Lawless Broker100%
$0.08↑#256720.29↓9.9 years↑
"When this creature dies, put a +1/+1 counter on target creature you control."
Jugan, the Rising Star92%
$0.29↑#12101↑0.36↓21.9 years↑
"When this card dies, you may distribute five +1/+1 counters among any number of target creatures."
Odric's Outrider90%
$0.22↑#19890↑0.00↓4.9 years↓
"Whenever this creature or another creature you control dies, put a +1/+1 counter on target creature you control."
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"When you cycle this card and when this creature dies, you may put a +1/+1 counter on target creature."
Star Pupil84%
$0.13↑#16381↑0.00↓5.4 years↓
"When this creature dies, put its counters on target creature you control."
Miner's Guidewing84%
$0.27↑#11127↑0.00↓2.8 years↓
"When this creature dies, target creature you control explores."