Useless cards ?

Hi there,
i'm a new french player and i wonder if there are some cards that are useless in any deck and that i can safely sell ?
Thanks in advance.

Urgent Business, Selfishness and Campfire Stories come to mind. Conversion, Battle Plans, Keldor and Katrin the Shieldmaiden as well.

It is somewhat hard to come up with a list like this, as most cards can at least have some fringe usage, but just going in terms of cards that no one ever really uses, the ones mentioned above are certainly contenders.

Thanks !! And what about special delivery ?

Special Delivery is rarely used these days (a bit more useful in the past), so that might be another one to add.

As for the card highlighting, that should happen automatically as long as the card name is spelled correctly and the site can recognize the name (sometimes newer cards don't show up for example).

Thanls a lot, i know my question is very hard to answer but it's a bit frightening when you see all those cards as a new player.

^ Same reason I've found it hard to get into Magic: The Gathering. So many cards to try and learn. SE has a smaller amount, but yes, for a new player can be hard to figure out what cards are good.

Like when I started SE, I thought that Blood Frenzy was bad card, now I think it's one of the best cards! lol