Playing Yag Horseprince, I summoned a Bargul which should have killed 2 creatures, one from each player.  Yag's Fire Drake was killed and my Merfolk Elder has 0 life but is still on the table.  I cannot take any actions -- the game is still making noise but is completely non-responsive:

Yag has:

• Insanian Berserker in slots 1 and  5
• Troll in slot 2
• Ambrosia Stone in slots 3 and 4
• Slot 6 is empty due to creature (Fire Drake) destruction by summoning Bargul
  

I have:

•  Merfolk Elder (life is 0 due to Bargul, but the card is still present) in slot 1
• Bargul in slot 2
• Paladin in slot 3
• Ambrosia Stone in slots 4-6
  

I've had the same problem, twice.  I don't have all the info like LoveMutt, i did the other day, but the website wasn't coming up.  Seems the woman threw out my notes cleaning the livingroom.

Anyway I've had it happen twice. I believe both times were on campaign playing against Horseprince, I know one of them was.  The first time he used it against me, and it was going to kill most of the creatures. Anyway, it didn't freeze, it just stopped.  I tried the options like 'main menu' and they wouldn't work. i closed the window down, was able to restart the game, and go back to my campaign and it started right back up with everything just like it was right before he summoned Bargul.

 I decided to run the campaign again, this time it was me that summoned Bargul, It would have killed all his creatures and half of mine, and left him with 1 hitpoint, so when my creatures attacked, I would have won.  It stopped responding when it went to calculate the damage.  again, I closed the window and restarted, loaded my campaign and it started with everything just like it was before I summoned the card. This time I summoned him and won, without a problem.

I'll try it again, if it happens I'll get all the cards and such and get back to you guys.

Enjoyed the game so far, thanks.

I've had the game freeze numerous times with Bargul. If there a large amount of creatures going to be killed, the game locks in an infinite sound loop (the attack noise) and freezes.

I've had this happen numerous times (both in the campaign and single duel).  To clarify, it doesn't always freeze the game.  Sometimes the sound will loop until I exit out of the game, but the game continues to function properly.