Card Trivia:Crystal Beast Cobalt Eagle


 * This card was probably the reason Gem/Jewel Beasts were changed to Crystal Beasts between the OCG and the TCG. The reason for this is because Cobalt is not technically a gemstone, unlike the other Crystal Beasts which each feature a gemstone: Ruby, Amber, Topaz, Emerald, Sapphire, and Amethyst. It is plausible that Cobalt was confused with the gemstones Copal or Coral. While the blue color in the card, in contrast to Cobalt's silver-gray color, may come from the color Cobalt Blue.


 * The approximated Arabic name for this card replaces Cobalt with Tanzanite, a blue gemstone, in order to preserve the term Gem/Jewel.