Some time ago I played highlander with few people. It was quite a long overnight session and we had lots of fun. One of the players was asking the other one what he was doing with a certain card (because it was in a really bad state). I didn't know what card it was until he played it. He was quite desperate about getting rid of it so I offered to give him a different fetch land instead and took this one into my care.
From first sight you could see that the card went through a wash machine or that it was in water for quite some time. First the card needed to be pressed so it would be at least playable in thick sleeve. After a month of having it under tons of books and cards I decided to take it out and included it in my deck.
The card was playable but still you could see all the white places and the wierd texture water did. Time for altering called. The card at least deserved some color.