Living in Europe, I have the pleasure of being able to use MagicCardMarket or MCM. Its a nice way to get the single cards you need from a centralized service (and not having to take part in the travesty that is Puca Trade). One of the fun things about the service (pretty much like any good service on in the Internet), you can go through your whole history of purchases.
Damnation, or Is There a Price Bubble in MtG Single Cards?
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