I’ll be discussing why trading cards might bend.
Why do Trading Cards bend?
My trading cards most of the time would bend because of the room temperature. I used to get Pokémon cards but eventually switched to duel monsters and learned more about proper care for these collectibles.
When I learned more about their structures things made more sense. These cards are usually made out of a fragile material. Thin aluminum.
The best piece of advice I can share is to NOT straighten them out yourself if you notice a bend.
Bended Trading Cards FAQs
What causes cards to warp?
I’ve had cards bend on me in the past.
And after coming across my favorite way to protect my cards I could comfortably recommend a card protector case.
They worked well for a few of my most valuable.
The main cause cards bend is not being placed in an airtight container.
RealTalkAJ 
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