*Buy Mega Gengar ex (Ascended Heroes 284) cards on eBay, Amazon, and TCGPlayer Pikachu ex (Surging Sparks 247) While the Special Illustration Rare version of Pikachu ex usually gets the headlines, the Gold Hyper Rare variant has executed the most surprising move of the week
The first two are among the most iconic competitive cards from the GW era
Theres also the 140 HP, single prize Koraidon which can add another dimension to Ancient decks with its Primordial Beatdown attack which does 30 damage for each of your Ancient Pokmon in play
You should not at all be limited to these matchups, but they're ones that I think are worth playing
Mega Heracross ex Hyper Rare ($120+) A shiny beetle stunner, this Bug/Fighting-type Mega ex (300 HP, Megahorn Strike) glows in gold hyper rare foil, with intricate wing patterns
Destroy them, then you can Special Summon a number of "Doom King" monsters from your Deck and/or Extra Deck, up to the number of destroyed cards