Marvel Heroes 2015 had Steam trading card support added on September 12, 2013. There are 9 cards in the series. Since Marvel Heroes is a Free to Play game, card drops are earned by spending money for the game's content. The current rate is $9 per card drop.
Trading Cards
Captain America
Deadpool
Emma Frost
The Hulk
Human Torch
Iron Man
Spider-Man
Wolverine
Foil Cards
Captain America
Deadpool
Emma Frost
The Hulk
Human Torch
Iron Man
Spider-Man
Wolverine
Badges
Level 1
The Man Without Fear
The Man Without Fear
Level 2
Master Archer
Master Archer
Level 3
Goddess of the Plains
Goddess of the Plains
Level 4
Chaos Magic
Chaos Magic
Level 5
Clobberin' Time
Clobberin' Time
Foil Badge
Doom
Doom
Booster Pack
Emoticons
:FF:
(common)
(common)
:Fury:
(common)
(common)
:Avengers:
(uncommon)
(uncommon)
:XMen:
(uncommon)
(uncommon)
:Spidey:
(rare)
(rare)
Profile Backgrounds
Campbell Luke Cage
(common)
(common)
Campbell Scarlet Witch
(common)
(common)
Campbell Wolverine
(common)
(common)
Campbell Group Shot
(uncommon)
(uncommon)
Marko Group Shot
(rare)
(rare)