1st gen pokemon cards first How to Tell if a Pokémon Card is a First Edition 1st generation Pokémon cards :

Unlike most sets, which offer the most value in one particular booster pack, theres power to be gained through all three of Mega Rising s booster packs

Getting 10 Mega Hyper Rares in a single pack before the set is publicly available means either the pack itself was an extraordinary error, or someone spent an enormous amount of money buying from resellers to accumulate that many cards beforehand, which wouldn't explain a single pack containing all of them.The reseller angle doesn't hold up well either

Then sacrifice The Moment

She is tagged with Storyborn and Villain

It is a card in the simplified Chinese version of the Pokmon Trading Card Game