What is the difference/benifit of golden cards? [duplicate]

In terms of game mechanics they give more dust when you convert them, double that of their non-gold counterparts.

Other than that, they're just there to look cool. (the pictures also have slight movement)

Golden Cards have several benefits, none of them tactile save two.

• All cards may be dis-enchanted for dust, this dust can be used to 'craft' specific cards you want, therefore circumventing the 'random' nature of the packs you open. Golden Cards grant twice as much dust as their normal counterparts. This is the first tactile benefit.

• Golden cards count as an additional card not an upgrade to an existing one, so if you have one Normal Card and one Golden Card you can put both in your deck to meet the 2 card maximum. This is the second tactile benefit.

• Golden Cards have the visual benefit of having animated pictures that often are more interesting to look at than normal ones and flaunt some flair for you as you play. This obviously has no real impact on the game itself.

• Golden Cards that have abilities that create other cards will share their golden animated picture benefit to their produced offspring. Once again this is just for show.

• If a player's deck is entirely composed of Golden Cards and they start the game going second, they will receive a Golden Coin instead of a Normal Coin. Thanks @Sconibulus for this contribution!