sutoLkcalB said: I am a "not-payer" and had always a win rate of around 80% -regardless of which event.So much to randomness.But now in the challenge ("Prüfung der Welten") it dropped to 50%.And not only that - the matches I lost I had not the slightest chance to win, while it was vice versa for the matches I won.Completely different to the experience I had for the last months.Did the engine get an update in the last two days - I was not aware of one.
I also think it's most likely bad luck with the random draws of the game. I'm not sure which event you're talking about (Trial of the Planes?), but if it's against other player decks I've had the same experience you described. I win most of my matches against other players, but every once in a while I'll fight a deck filled with only the most powerful mythic cards, and lose badly.
You will also sometimes have a fight where the opponent will get 15 matches in one round and cast every card in their hand. It just happens sometimes.