magic card mtg Richard Garfield, Ph.D You may play cards as though they were other Magic cards of your choice with the same mana cost MTG Unlimited - Third Print
Description
The basic idea is that a flashlight on full blast will cut through a legit card and show through on the other side, while a counterfeit card will either block the light completely or dull it significantly

The X/Y/Z bit is a bit bizarre, the artwork isn't quite as zany as it could've been, and the flavour text, presumably, is the actual WOTC customer service number

1 The Ur-Dragon

On the old stuff, the most distinguishable sign is the light test, Rudy, who dispenses financial advice on buying Magic cards on his YouTube Channel Alpha Investments LLC, told me over the phone
