The card was limited to 500 copies, and they were shipped to the players in March 2022
C-Crush Wyvern X LIGHT Level 4 [ Machine / UnionEffect ] ATK 1200 DEF 2000 Once per turn, you can either: Target 1 LIGHT Machine monster you control
Unfortunately, the Quarter Century Secret Rare cards have an overwhelmingly high chance to be misprinted, botching the debut of an otherwise exciting and new anniversary-exclusive rarity
It is much more consistent with shocklands (as they have land types, Steam Vents is an Island Mountain) and fetch lands (can get shocklands)
Okay, This is the card when I fix the effect: the effect become like this: "Darkest Diabolos, Lord of the Lair" + 1 card on the field You can special summon this card by sending the above cards from either side of the field/ or your hand to the GY, but if you summon this way: This card loses 1000 ATK/DEF, shuffle this card to the deck when it leaves the field
This was a small but interesting change