yugioh card back side

yugioh card back side Can anyone explain to me these blemishes on the backs? Am very new to collecting/opening packs : r/yugioh Are these Yu-Gi-Oh cards authentic?

Name: yugioh card back side Can anyone explain to me these blemishes on the backs? Am very new to collecting/opening packs : r/yugioh Are these Yu-Gi-Oh cards authentic?
Brand: comein.se
SKU: 77986864467
Price: 25.61 USD
Availability: InStock
Rating: 4.4536 (12 reviews)

SKU: 77986864467

4.5

USD25.61 USD58.61

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Description

Vulpine Harvester gives this deck a little resiliency

In both the main set and the specific Commander set, there are cards that play to Kamigawa: Neon Dynasty's lore and historic gameplay style

This typically includes holographic cards, first editions, rare promotional cards, and popular Pokmon like Charizard or Pikachu

For every entry, I make sure to note down crucial details: the card's name, its set (like Crown Zenith or Scarlet & Violet 151), its rarity symbol, and its condition