Also, it is impossible for it to be a rebacked card. Rebacking can only be done to CE cards. it could be a "Refaced" card, which is where to use sticker paper for the front of a magic card and print a new face on it.
This is one of the dumbest, and most untrue things ever posted on TheManaDrain. When you 're-back' a card, you are simply splitting a good Magic card's two layers in half, and then then taking the good/nice condition back that you split, and adhering it to the front of another card you have seperated. This can be done to
any Magic card that you wish to re-back, not just a CE card.
That being said, cards that are somewhat played will often exhibit a 'dual-layer,' so that is nothing to be alarmed about. If it looks and feels real to you, then it's probably going to look and feel real to whoever you will eventually sell it to as well.