A mysterious Mew card marked “B/RGB” has surfaced within an early 30th Celebration booster pack, triggering intense debate among Pokemon TCG collectors regarding its authenticity. The card was revealed during a July 25, 2026, livestream by the Australian seller PokeAus Hits, appearing in a pack just before the guaranteed Pikachu illustration card.

The card features a textured blue foil design, a YOSHIROTTEN illustrator credit, and “B/RGB” printed in the position typically reserved for a card number. It also displays a previously unseen multicolored circular symbol. While the expansion is officially set for a worldwide release on September 16, 2026, this specific Mew design is not part of the announced card list, and no official information regarding an “RGB” rarity or subset has been provided by The Pokemon Company.

Source Reliability

Confidence: 80/100. The physical existence of the card is verified through video footage from a live pack opening. However, the legitimacy of the card itself is unconfirmed. The chain of custody for the booster pack remains unclear, as the seller already possessed unreleased product, leaving the possibility of a sophisticated proxy or unauthorized sample open.

Arguments for and Against Authenticity

Supporters of the card's legitimacy point to the high level of detail in the foil and texture as evidence that it is not a standard homemade proxy. Some fans suggest the “B/RGB” labeling might indicate a secret, unannounced subset of three cards, noting that illustrator YOSHIROTTEN has previously worked on projects titled PHENOMENON: RGB and is also the artist for the officially confirmed Futuristic rare Mew ex and Mewtwo ex.

Skeptics, however, highlight several discrepancies:

  • Missing Branding: The card lacks the Pikachu-shaped 30th anniversary stamp found on all other confirmed cards in the set.
  • Checklist Absence: The Mew does not appear on the leaked 30th Celebration card checklist.
  • Mechanical Reuse: The card’s HP, attacks, and retreat costs are identical to the previously revealed MEP Promo 105 Mew, which could serve as a template for a high-quality fake.

With no official comment from The Pokemon Company or the artist, the “B/RGB” Mew remains a point of speculation. Whether it is an ultra-rare secret insert or a well-executed fabrication, no second copy has been reported to date.