My one reservation about printing more cards like this is that they can be incredibly selfish with the chess clock if you take multiple long turns without winning, so just be self-aware enough to not bore your friends, and make sure you include win conditions
These creatures have every creature type, so they wont dilute the number of relevant creatures in your deck
If that ends up being the case, checking services like TCG Player will provide a good idea of what the cards are going for on the second-hand market
Damaged Surfaces Most vintage holo cards have a natural bend to it so don't stress over it
For only one Energy, you can use Moltres Inferno Dance move
Its coming soon to PC, Mac, Android, and iPhone (iOS) which has Pokemon TCG Online players wondering about the future of their decks