When buying Pokmon cards, be sure to have a professional appraise the card for authenticity
Getting duplicate cards from booster packs or even Wonder Pick can be quite a frustrating experience, and that's because players have no control over what a pack will contain, nor can they do much about obtaining several copies of a given card, even rare ones
SR Super Rare D/D/D First King Clovis X DARK Level 6 [ FiendSynchroEffect ] ATK 2100 DEF 1900 1 Tuner + 1+ non-Tuner monsters If this card is Synchro Summoned: You can target 1 of your banished "D/D" monsters, or if a "Dark Contract" card is on the field, you can target 1 in your GY instead
Channel , Discard this card: Return X target nonlegendary cards from your graveyard to your hand
Call down the big thunder and charge up your deck with the high-powered Pokemon in the Sun & Moon - Lost Thunder expansion
This also means you can definitely get away with using older versions you can buy on eBay and not worry about losing any significant feature