Courageous Goblin 

Creature — Goblin
$0.14 #16675 0.00 1.9 years
Whenever this creature attacks while you control a creature with power 4 or greater, this creature gets +1/+0 and gains menace until end of turn. (It can't be blocked except by two or more creatures.)
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Ornery Dilophosaur92%
$0.18↑#185690.066.3 years↑
"Whenever this creature attacks, if you control a creature with power 4 or greater, this creature gets +2/+2 until end of turn."
Nighthowl Pursuer92%
$0.24↑#181260.010.2 years↓
"Whenever this creature attacks while you control a creature with power 4 or greater, this creature gets +2/+2 until end of turn."
Heir of the Wilds90%
$0.16↑#168520.14↑12.1 years↑
"Whenever this creature attacks, if you control a creature with power 4 or greater, this creature gets +1/+1 until end of turn."
Ruby, Daring Tracker87%
$0.23↑#2164↑0.15↑3.1 years↑
"Whenever this card attacks while you control a creature with power 4 or greater, this card gets +2/+2 until end of turn."
Scalestorm Summoner86%
$0.17↑#20685↓0.062.5 years
"Whenever this creature attacks, create a 3/1 red Dinosaur creature token if you control a creature with power 4 or greater."
Stampede Rider84%
$0.11↓#23054↓0.16↑6.7 years↑
"At the beginning of each combat, if you control a creature with power 4 or greater, this creature gets +1/+1 until end of turn."
Ravening Warg83%
$0.16↑#173050.20↑0.2 years↓
"Whenever this creature attacks while you control a creature with power 4 or greater, you gain 2 life."
Rubblebelt Braggart82%
$0.03↓#27280↓0.062.7 years
"Whenever this creature attacks, if it's not suspected, you may suspect it."
Wilderland Scrounger81%
$0.21↑#146380.23↑0.2 years↓
"Whenever this creature attacks while you control a creature with power 4 or greater, put a +1/+1 counter on each creature you control."
Wargling80%
$0.15↑#165670.060.2 years↓
"Whenever this creature attacks while you control a creature with power 4 or greater, until end of turn, this creature gets +1/+0 and creatures you control gain trample."
Territorial Witchstalker78%
$0.18↑#25583↓0.13↑3.1 years↑
"At the beginning of combat on your turn, if you control a creature with power 4 or greater, this creature gets +1/+0 until end of turn and can attack this turn as though it didn't have defender."
Quilled Charger78%
$0.04↓#26194↓0.072.5 years
"Whenever this creature attacks while saddled, it gets +1/+2 and gains menace until end of turn."
Fear of the Dark78%
$0.17↑#12895↑0.28↑2.1 years
"Whenever this creature attacks, if defending player controls no Glimmer creatures, it gains menace and deathtouch until end of turn."
Bristlepack Sentry77%
$0.15↑#20557↓0.21↑2.5 years
"As long as you control a creature with power 4 or greater, this creature can attack as though it didn't have defender."
Drowsing Tyrannodon77%
$0.15↑#21607↓0.066.3 years↑
"As long as you control a creature with power 4 or greater, this creature can attack as though it didn't have defender."
Hand That Feeds77%
$0.09↓#24259↓0.062.1 years
"Whenever this creature attacks while there are four or more card types among cards in your graveyard, it gets +2/+0 and gains menace until end of turn."
Goreclaw, Terror of Qal Sisma77%
$0.97↑#635↑0.35↑8.3 years↑
"Whenever this card attacks, each creature you control with power 4 or greater gets +1/+1 and gains trample until end of turn."
Nasty Little Rabbit77%
$0.21↑#186920.24↑0.2 years↓
"At the beginning of combat on your turn, if you control a creature with power 4 or greater, put a +1/+1 counter on this creature."
Nessian Hornbeetle77%
$0.16↑#134900.066.7 years↑
"At the beginning of combat on your turn, if you control another creature with power 4 or greater, put a +1/+1 counter on this creature."