In the case of 1999's Shadowless Holographic Charizard card, there's an additional value due to the age and rarity of the card type
If there is no scan or photo showing the back of the card, that card has a standard english back
No matter where you choose to buy your Pokemon cards, the key is to do your research and purchase from trusted sources, whether online or in person
If you didnt throw them, could you please if you do have number 13 and 38
Nethroi, Apex of Death Casting Nethroi, Apex of Death for its mutate cost gives you your mana back in value, so long as you have a stocked graveyard
(Maybe) Kicker/Multikicker The reason these both showed up in past Zendikar sets is that land-centric themes tend to promote playing more lands, which tends to end up providing the players with more mana, making mana sink mechanics useful