I encountered an issue during playing Solo Adventures, specifically Tombs of Terror. There is a Treasure, a 7-cost spell, which is supposed to summon 7 murlocs and give them rush, and do the same the next turn. However, when I play it, it just destroys both boss and the my hero, and then the screen comes on as if I have lost. But thats not the best part - that is, that I in fact had not lost, and it offers me to play again, for the same boss in order (for example for "challenge number 6), but the boss is different this time. This has happened to me 3 times, I recorded thelast time it happened on video but I don´t know how to put it here… any suggestions? Has this happened to anyone else? 
If both players die at the same time it is a draw.
A draw is counted as never happened. For arena it is neither a win nor a loss.
In adventure you get no treasure and fight a boss at the same level again.
The fact that this happens with Murky’s Battle Horn is a documented bug, just read the ‘known issues’-post:
When will they fix it??