The fact that you can copy some massive spells based on the amount of combat damage tokens do to an opponent is huge value
Now, Zhulodok is a special case that constrains you to colorless cards but rewards you impressively for doing so
This merfolk gives you a card draw engine on its heroic
This guide breaks down the top 10 most valuable OP-13 cards with current Japanese market prices, detailed pull rate data, Demon Pack mechanics, competitive meta impact, and buying recommendations
The 1st edition Charizard is the equivalent to the 1952 Topps Mickey Mantle, the 1986 Fleer Michael Jordan, and the 1979 O-Pee-Chee Wayne Gretzky holy grail cards
Recent sets have introduced build-arounds like Insidious Roots, Kishla Skimmer, and Quintorius, History Chaser, inching this strategy ever closer to critical mass