xy black star promos booster box POKEMON PROMO RED & BLUE COLLECTION FULL ART/PIKACHU EX PSA 7 hitting attacks and high HP totals make mega evolution Pokemon dominant during Pokemon TCG matches. Pokemon TCG: XY Fates Collide

10/132 Koga's Ditto(Holofoil)

23 Rocket's Mewtwo Gym Challenge Market Price: $213.12 Now, this is the kind of card that one can guess would be extremely valuable just by its name

Lets take a look at the six rarest cards you can find in the Mythical Island pack

Are there any top notch cards I missed (I realize red and black didn't get much love in this list)

2.1st Edition MetalGreymon The 1st Edition MetalGreymon is a highly coveted TCG trading card

Theres a chance other secret rare cards may see their prices hike up if they turn out to have unexpected competitive use - like what happened with Sun & Moon - Cosmic Eclipse s Arceus & Dialga & Palkia Tag Team GX card - and the rarest cards of the set will inevitably see an increase in value as other sets release, such as the upcoming Astral Radiance Pokmon TCG set, and the overall supply of Brilliant Stars decreases