After a loooong time, I've finally added the feature to battle (Hive Keychain is necessary). Check it out here.
It's basically an alternative layout to the offical game, splitting your cards by Splinter. For now, the cards are sorted by level (levels are multiplied to match common level), then rarity and then by mana cost, and in the future I might add a sorting order. You can filter cards by name, ability, attack type and mana cost.
As you might have noticed, you can toggle your opponent to check the last decks they used and also see what cards they can use.
This is NOT the official game website, so if you think there are any problems during a match, go to the official website, it'll load the current match.
I hope you find it useful, cheers
Check my other site:
https://splinterlands-card-maker.web.app/