i think i would be usefull to add some options to the deckbuilder so if your looking for a hunter deck for exampel that has secrets in it you could check a box for finding decks with secrets or for finding decks with inspire cards or combo cards for Rogue

what do you think?

well yes sure but i mean if you whant to find decks based on a special card type like a deck based on inspire cards so when you use your hero power something will be happen with or by that card like it gets 2 attack and 2 healt or summon a random murloc for example or if you whant a deck based on that all minions have deathrattle or spelldamage so your spells gets super buffed so that like fireball does like 10 damage. with the filter function you can only filter out the decks that have 2 or 3 specific cards in it, and thats usefull too if you want to find a deck with that card in it. but i mean so it will show deck where the majority of cards is the same. it would be good for those who wants to find deck like secret paladin or mech mage and even murloc hunter.