Departure have to be from French airports
Destination to FR or EUROPE.

Fare: Changeable with no fees, refund with 20€ penalty
Fare: usually 20-30€ below standard fare. In all cases equal or less to Light fare (but with flexibility in the booking)

Luggage: 1 luggage included in the fare (so 2 luggages for elite members)

Usually, there is a discount on the card several times a year. It can be booked from 15 to 25 instead of 49€ Depending on the discount. Probably for Black Friday they will make one.