This is 100% sad. I: Treasure cards are a part of PvP, and i doubt KI will change this just because you lose one match. Forgive me for being blunt, but just deal with it and move on. You say you lose all the time? That's to be expected if you a level ten. Level up and PvP will become much easier.
PvP will not become easier, it will become harder because of people spamming powerful spells.
If you are in the ranked pvp one without the crowns there is a box that says try all opponents you probally have that on with a check mark it searches for opponents out of your skill range to make the teaming up faster thats my guess.