While Magic has been changing the way they release Standard sets several times over the past couple of years, I believe that under the current format players of the original five colors would have 5 or 6 sets worth of cards to choose from, while Purple players would only have 1, at least at first
Contents Booster Pack [OP-14] x2 DON
I also really like the way that this card plays in graveyard decks that include Bone Miser and other other enablers
If you have a Gate Guardian Monster on your side of the field, you can use this to halve your opponents life points, then add it as attack for one of your Gate Guardians
but in a way, it might be the most problematic, as its basically going to be a problem in any format you stick it in (even if people might not realize it)
You will almost certainly damage the coating, blur the ink, or spread the stain