The daily quests often force me to play some classes that I have not much experience with and no good decks for. This makes it rather frustrating to play them when the matchmaking puts me against opponents that would be fair for my best class and deck.
One idea would be to repeatedly concede every casual game directly at the beginning to lower my win rate and get ranked lower in the matchmaking. But that seems like a rather obvious tactic and I would guess that Blizzard might have done something to prevent players from exploiting this.
Does repeatedly conceding to lower your own rank in casual play work? Are there any other ways to get yourself to rank yourself lower to make it easier to fulfill daily quests?