I generally like Black Diamond sets - even if I shouldn't. I mean, they are so metallic and dark and can be hard to read, but I like them. One of the first sets I saw in any number, which I started to collect is 2005-06 Upper Deck Black Diamond hockey...which we get to see a bunch of today.
I have a lot of the single diamond base cards, but did still have some I need, and one double diamond.
Here I had gotten rid of a bunch of the dupes of this set I picked up a few years ago, but now I have another 150 or so to trade away. Guess that's not a bad thing since they do seem to move at least.