It would be really helpful if we could check whether we can build a deck that isn’t on the site by inputting text. Alternatively, if the Decks included all decks from game8 (ones that are no longer in the tier list), that would satisfy my needs 
Bonus question: When the Decks feature checks for owned cards, does it do all of the same name or does it check that their type and abilities are the same?
I’ve been working on a tab where you can build your own decks: Github #734. Taking this opportunity: do you have any features that you want to see in the deck builder?
Per the bonus question, it checks that everything is the same (type, ability, attacks, retreat, etc.). The “deckbuilding mode” works like this everywhere on the page 
Hi Greg! I’m not too into deck building so I mostly just want to quickly check whether I have cards for a deck I found online. I mostly play Solo so I want decks for a card I like, even if they aren’t in the current meta. I have been getting mine from game8 so far, since they keep up the older decks too.
Until now I have been using ptcgp-tracker.com, they have a Deck check feature that lets me use text. So I would copy the deck from game8, toss it into a python program that would convert the text into the format ptcgp-tracker uses and check.
The site is difficult for me to input cards into though, so I am looking for an alternative. The only thing I am missing here are more decks.
I’d second an option to see past decks. I can’t make most if not all of the Mega Rising decks at the moment, so I’m relying on what was in Deluxe Pack or Secluded Springs and prior until I can get more Mega Rising cards.
Even if they’re not meta now, they’re still handy against the computer, if not a substitute while waiting for better cards.