Iron Man, Armored Avenger 
Legendary Artifact Creature — Human Hero
$1.04 #7355 0.47 0.3 years
Flying
Whenever you draw a card, put a +1/+1 counter on target creature.
Whenever Iron Man attacks, other attacking modified creatures gain flying until end of turn. (Equipment, Auras you control, and counters are modifications.)
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Cards similar to Iron Man, Armored Avenger expected a card that isn't here?
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Baxter, Fly in the Ointment90%
$0.24↓#75060.30↓0.6 years
"Whenever you draw a card, put a +1/+1 counter on this card."
+1 more matching line
Lyla, Holographic Assistant88%
$3.80↑#60130.36↓1.1 years
"Whenever you draw a card, put a +1/+1 counter on target creature."
Heavenly Qilin86%
$0.13↓#30037↓0.06↓8.3 years↑
"Whenever this creature attacks, another target creature you control gains flying until end of turn."
Trained Condor86%
$0.05↓#28912↓0.00↓13.3 years↑
"Whenever this creature attacks, another target creature you control gains flying until end of turn."
Kinsbaile Balloonist86%
$0.14↓#26585↓0.00↓19.0 years↑
"Whenever this creature attacks, you may have target creature gain flying until end of turn."
Chasm Drake86%
$0.08↓#30609↓0.29↓15.3 years↑
"Whenever this creature attacks, target creature you control gains flying until end of turn."
Pegasus Courser85%
$0.11↓#17678↓0.30↓8.5 years↑
"Whenever this creature attacks, another target attacking creature gains flying until end of turn."
Aerial Guide85%
$0.06↓#23552↓0.00↓9.3 years↑
"Whenever this creature attacks, another target attacking creature gains flying until end of turn."
Gwaihir, Greatest of the Eagles82%
$0.43↓#59540.07↓3.3 years↑
"Whenever this card attacks, target attacking creature gains flying until end of turn."
+1 more matching line
Ravenhill Flock80%
$0.22↓#16212↓0.20↓0.2 years
"Whenever you draw a card, put a +1/+1 counter on this creature."
+1 more matching line
Oneirophage80%
$0.14↓#69540.18↓7.4 years↑
"Whenever you draw a card, put a +1/+1 counter on this creature."
Clinquant Skymage80%
$0.25↓#5756↑0.06↓1.9 years↑
"Whenever you draw a card, put a +1/+1 counter on this creature."
Gravity Negator80%
$0.05↓#26180↓0.00↓10.7 years↑
"Whenever this creature attacks, you may pay 
. If you do, another target creature gains flying until end of turn."
. If you do, another target creature gains flying until end of turn."
Lorescale Coatl80%
$0.15↓#11755↓0.06↓17.5 years↑
"Whenever you draw a card, put a +1/+1 counter on this creature."
Phyrexian Pegasus80%
$0.17↓#17555↓0.00↓3.5 years↑
"Whenever this creature attacks, another target attacking creature without flying gains flying until end of turn."
Starry-Eyed Skyrider80%
$0.15↓#82500.11↓1.5 years↑
"Whenever this creature attacks, another target creature you control gains flying until end of turn."
Roc Charger80%
$0.15↓#26875↓0.00↓8.0 years↑
"Whenever this creature attacks, target attacking creature without flying gains flying until end of turn."
Trusted Pegasus80%
$0.13↓#17601↓0.00↓7.5 years↑
"Whenever this creature attacks, target attacking creature without flying gains flying until end of turn."
Helitrooper79%
$0.21↓#77660.12↓1.4 years↑
"Whenever this creature attacks, another target attacking creature gains flying until end of turn."
Gryffwing Cavalry78%
$0.09↓#25143↓0.00↓4.9 years↑
"Whenever this creature attacks, you may pay 
. If you do, target attacking creature without flying gains flying until end of turn."
. If you do, target attacking creature without flying gains flying until end of turn."