There was NO way to know the rarity of early magic cards based on the cards alone
If you find yourself staring down a Tormods Crypt as a graveyard deck, or Aura Shards in Enchantress, you can stop their activations/triggers and get them out of the way to boot
Paldean Student 230/91 Loading
But there's a big difference between PSA 10 and PSA 9 - anything less than perfect, and your first edition Pokmon cards' value can tank dramatically
Hopefully, the promise of the returning Pokmon-ex mechanic, along with the mysterious possibilities of terastalized Pokmon cards, will be interesting enough that focusing on how it affects live play might distract from this

Hop Hop's Trevenant 204/193 Mega Dream ex Hop's Wooloo 112/100 Battle Partners Hop's Zacian 118/100 Battle Partners Hop's Zacian ex 128/100 Battle Partners Hop's Pincurchin ex 233/SV-P Scarlet & Violet Promos Friends in Galar 149/184 VMAX Climax Friends in Galar 258/184 VMAX Climax Hop 027/028 Special Deck Set Zacian & Zamazenta VS Eternatus Hop 015/015 25th Anniversary Golden Box Hop 018/020 Starter Set VMAX, Blastoise Hop 019/021 Starter Set VMAX, Charizard Hop 019/021 Starter Set VMAX, Venusaur Hop 020/021 Hop 139/S-P Sword & Shield Promos Hop 117/127 V Start Deck Hop 020/020 Starter Set VMAX, Grimmsnarl Hop 058/S-P Sword & Shield Promos Hop 007/007 Zacian & Zamazenta Box Hop 022/023 Starter Set V Hop 022/023 Starter Set V Hop 022/023 Starter Set V Hop 023/024 Starter Set V Hop 023/024 Starter Set V Hop 052/053 Family Pokmon Card Game (Sword & Shield) Hop 052/053 Family Pokmon Card Game (Sword & Shield) Hop 052/053 Family Pokmon Card Game (Sword & Shield)