We should be able to trade career cards with others in TCGOne. Also trading ink and cards for any combination would offer a wider range of cards to use in the career mode. Thanks.
Believe it or not, up until September of 2017, TCG ONE used a marketplace system, where players could offer up cards they had earned in career mode, for the coins you earn from battles and quests. (there was never any trading on tcg one, except for coins)
However, this created a problem where either the card you wanted was being asked for at a ridiculously high price (For example. shining charizard was going for the maximum market value at 9999 coins), or the card you wanted wasn’t even being offered up on the market.
(when i first started playing, Base Set Electrode was never on the market. because no one wanted to sell it)
Then in August 2017 Admin made an announcement that the Market place will be stopped in favour of an ink system, where the spare cards we had, could be turned into an “INK” currency, which could then be used to create the cards we wanted, at fixed prices.
while i do miss the market place (as it really helped me to get 4 of every holo, jungle, fossil and team rocket card, before the marketplace stopped), i feel the new inking system is more geared to newer beginners just starting out, as rather than open packs aimlessly searching for 1 card, they could used the saved up ink to create that one card they need for their deck.
We had a market place at one point where people could sell cards for in-game currency ( I believe it was called bits) and it got of hand because a few players would buy the cheapest rare or higher staple cards then sell it for double or much higher the price and as DK said certain cards would be super overpriced., for example remember I could not build Riptide or Scizor ecard deck until the inking system came along because of the main pokemon used in those decks were 6000-9999 bits.
As for trading, it would be interesting and neat to have.
Trading of cards of same class could be logical to make player’s life easy for completing their collection; such as you have a charizard but need a blastoise, both are epic class cards, then you would be able to put up a trade with it. This should be limited to superior and epic quality cards only, because getting rare, uncommon and commons are easy enough, or is it? What should be the limit of trades per day/week/month? Should there be a “trade market” where all trades are listed, or should it only happen through direct contact of two players like sending a challenge? In the former case, should there be an expiration date for each listing? We also have to think about whether trading unopened packs should be possible, if so, for which currency? There are many unanswered questions for implementing a complex feature like that.