That may not sound like a lot, but when a deck's looking to win via Thassa's Oracle or Underworld Breach, a few cards is all it takes
This is a rare exception in that you dont want to use the second attack, but well go over it anyway
Use a reliable dehumidifier in your main showroom or collection storage room to keep conditions steady at 6075F (1524C) and 4050% relative humidity
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Shining a light through the back of the card can also give you an indication if the card is real or not
You can use it well in Cube, 60 card fun times, and lots more