hi guys, i'm a newbie player here. i have searched and googled, and all beginner guides talk about which cards are helpful to new players, but i think most of those cards are not readily available to new players.

the way i figured, this game is heavily pvp-oriented. ok, so i want to be matched with someone in my "level range".

if i don't upgrade the cards, i can stay at lower levels, but my deck will be too weak to defeat other players.
if i upgrade the cards, as a newbie, i don't have any powerful card, so upgrading standard common and rare cards probably won't help much, but my level will go up, and i'll end up being matched with stronger players.

so, any suggestion for a new player?

thanks.