No, Kashko, misses can give an edge to lucky players; if you don't know what attacks do then play practice; the can't-switch-out button only appears after someone dies (and you can switch out with your new card) and if you're blaming your opponents' cards for your losses then you're simply a crappy player.
What sucks is a server that disconnects when you're ahead in a game and gives you a loss.
Uh, GwenWolfHow666, do you think the fact that it says, "Kongregate's Online Collectible Card Game" right on the intro screen could be a clue? Better ask Velma.