Stalwart Successor 
Creature — Human Warrior
$0.20 #13596 0.07 1.4 years
Menace (This creature can't be blocked except by two or more creatures.)
Whenever one or more counters are put on a creature you control, if it's the first time counters have been put on that creature this turn, put a +1/+1 counter on that creature.
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"At the beginning of combat on your turn, put a +1/+1 counter on target creature you control."
Deep Goblin Skulltaker86%
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"Menace"
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$0.05↓#20531↓0.17↑7.3 years↑
"Menace"
Enduring Scalelord84%
$0.13↓#111650.20↑11.4 years↑
"Whenever one or more +1/+1 counters are put on another creature you control, you may put a +1/+1 counter on this creature."
Spider-Man Noir84%
$0.28↑#9010↑0.21↑1.0 years
"Menace"
Demon Wall84%
$0.22↑#160340.23↑1.2 years
"Menace"
Vampire Socialite82%
$0.70↑#5301↑0.074.9 years↑
"Menace"
Keen-Eyed Raven81%
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"When this creature enters, put a +1/+1 counter on another target creature you control."
Botanical Brawler80%
$0.32↑#6758↑0.27↑3.4 years↑
"Whenever one or more +1/+1 counters are put on another permanent you control, if it's the first time +1/+1 counters have been put on that permanent this turn, put a +1/+1 counter on this creature."
Simic Ascendancy80%
$0.43↑#1285↑0.66↑7.6 years↑
"Whenever one or more +1/+1 counters are put on a creature you control, put that many growth counters on this enchantment."
Good-Fortune Unicorn80%
$0.20#3509↑0.17↑7.2 years↑
"Whenever another creature you control enters, put a +1/+1 counter on that creature."
Judge Magister Gabranth80%
$0.17↓#9191↑0.27↑1.2 years
"Menace"
Knight of Wundagore80%
$0.09↓#21078↓0.000.2 years↓
"Whenever you put a +1/+1 counter on another creature, put a +1/+1 counter on this creature. This ability triggers only once each turn."
Odric's Outrider80%
$0.22↑#19890↓0.004.9 years↑
"Whenever this creature or another creature you control dies, put a +1/+1 counter on target creature you control."
Tempered Veteran80%
$0.16↓#22943↓0.36↑6.2 years↑
"
, 
: Put a +1/+1 counter on target creature with a +1/+1 counter on it."
, : Put a +1/+1 counter on target creature with a +1/+1 counter on it."
Boggart Brute80%
$0.04↓#18747↓0.0011.1 years↑
"Menace"
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$0.04↓#30185↓0.009.9 years↑
"Menace"
Elephant-Rat80%
$0.09↓#21883↓0.000.8 years
"Menace"
Goblin Trailblazer80%
$0.10↓#16482↓0.008.6 years↑
"Menace"