Чебурашка, ты настоящий друг!
The Walkthrough says they are the same except for one card. However, I find that my decks have different counts of certain cards in them (some decks have 1 Rage, some 2. for example) and some are missing entirely (I think I have 1 deck without a Promise card.)
Is this accurate or should I inventory my decks and email WizKids?...
Each character has one specific card--but also one card fewer of the standard cards to accommodate it in their deck. That means that each character doesn't have a card that the others have. This differs from character to character.