#6 - My problem here is that they approve these cards for packs but if an artist tried to get approval for that as an AP it would get shot down every time. I agree with both sides - artists are getting paid crap per card so why should they spend hours on it BUT if that card isn't good enough to pass as an AP they shouldn't be letting artists bolster their numbers with those sketches to earn more APs to sell.
My other point has already been made - Once upon a time it was common for artists to either "finish" simple sketches or flat out over-sketch cards and they were basically turning crappy pack cards into APs.
Ethics aside - You own the card, if you want to erase it go ahead. Its your property. HOWEVER, it is also a licensed property and for it to be altered then sold (either as blank or re-done) would be illegal.