Each set has an entirely different symbol, so your best option is to google search for a list of them and compare your cards to it
If these cards show up again, we'll make sure you know about it.
Part 3: The plot thickens
First, the secret rare tier alone adds a meaningful chunk to the total the non-hyper-rare secret rares run into the low hundreds of dollars on their own, and prices on the chase cards move with demand
Pokemon Sword and Shield Wild Area The Pokemon Sword and Shield Wild Area is an enormous area right in the middle of Galar, and it's here where you can find other trainers, take part in max raid battles, catch extremely rare Pokemon, and more
Since Decatron is no longer on the field, you would now be trying to activate an effect that cannot properly resolve