pokemon tcg sword and shield booster pack & Chilling Reign Morpeko Checklane Blister [Booster Pack, Promo Card & Coin] Expand your adventure with the Pokémon SS1 Sword All 12 Sword & Shield

The next section may not be 100% accurate, but is a good primary identifier (if your rare does not have this mark then you need to scrutinize it extra closely, and have good provenance for it)

The cover characters are Roronoa Zoro and Juracul Mihawk

Genuine Metallic Pokmon cards will have the Wizards of the Coast (WOTC) logo printed on the back

Penny (Special Illustration Rare) 8

It might take time for Banette ex to find a spot in the metagame, but if Item-heavy decks become dominant, or if good cards are printed to work alongside Item lock (maybe effective damage modifiers or a way to easily heal a damaged Banette ex), you can expect this card to see a lot more play