This is a fantastic set of tips @ecoinstant
The basic idea that people have that the "best" cards are required to win is a misconception about the adaptability of this game.
My buddy @almightymelon has said multiple times that EVERY card in this game is great in the right circumstances. This is definitely a great play2earn game and not a pay2win game - just buying 'spensive cards won't always get you the wins!