The 3rd copy of every card can be disenchanted for free, and the 1st and 2nd copy can be disenchanted too if you dont think that card will be useful in the future
Playing the Pocket app was a good supplement to learning the art of card battle, and I can see myself letting my kids play on my phone to get them more used to the flow and the rules so later I can crush them with the physical cards I saved all those years ago.
With all that said, lets dive in to card selection, and why they were included in the deck
Tomb of Horrors Adventurer does a lot for you
The Stage 2 Pokmon would be the final form of the character, having the most power, range of attacks, and best durability (HP)
Storage is climate-controlled and fully insured