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The Earth Crystal There are a lot of +1/+1 counters matter decks out there, and almost every single one will want The Earth Crystal

In terms of card features, you are given a Pokmon with 120 HP, and its hit will deal 100 points of damage to your opponent

This proves that the person who possesses this card participated in the Secret Super Battle Best in Japan Deciding Match. Thanks, Bulbapedia

Coming as part of the Collector Boosters selection rather than the main Commander decks, its both a blessing and a curse that MTG players will have to search to get their hands on a new copy of Ravages of War

The Japanese (and generally Asian) market is called "OCG" (Official Card Game) and is separate from the TCG market mentioned in this quote

The latter half of the season sees Ryo Bakura, the owner of the Millennium Ring, overcome by the dark spirit within the Ring