The Elder Scrolls Online had Steam trading card support added on July 17, 2014. There are 8 cards in the series, 4 of which you'll receive for purchasing and playing the game.
Trading Cards
Foil Cards
Badges
Level 1
Ouroboros
Ouroboros
Level 2
Iron Ouroboros
Iron Ouroboros
Level 3
Silver Ouroboros
Silver Ouroboros
Level 4
Gold Ouroboros
Gold Ouroboros
Level 5
Daedric Ouroboros
Daedric Ouroboros
Foil Badge
Legendary Ouroboros
Legendary Ouroboros
Booster Pack
Emoticons
:Aldmeri:
(common)
(common)
:Daggerfall:
(common)
(common)
:Ebonheart:
(common)
(common)
:Imperial:
(common)
(common)
:Molag:
(common)
(common)
Profile Backgrounds
Breton
(common)
(common)
Elf
(common)
(common)
Nord
(common)
(common)
Fray
(common)
(common)
Arrival
(common)
(common)