This game is no different than Poker. Try playing a game where you are dealt 5 cards out of a deck of 52 and each time you have no idea of what you're up against. You bet hoping to win some money. Sometimes you win. Sometimes you lose. There is skill involved in the bet, just like in Hearthstone. You're betting on whether or not your opponent has the tech card or board clear. Sometimes he does, and sometimes he doesn't.
Madame Lazul might "accidentally" forget your birthday this year.
"Why, you never expected justice from a company, did you? They have neither a soul to lose nor a body to kick." -- Lady Saba Holland