It's hard to imagine myself disliking the game much more than I currently do, but the last level succeeded at that.
As an aside, the Gun Game level probably shouldn't decrease your level if you run out of bullets. That just lead to me committing suicide when I was low on ammo.
Your monster AI is downright frustrating. If I select units and tell them to attack an area, they will normally attack some one on the way and then stop long before they get there. They have a tendency of focusing on units that don't matter (Buildings and civilians over guards and heroes). There is also a tendency for units to actually run away while I'm attacking them and not get hit.
To be completely honest, the longer I play this game, the more I hate it. Later enemies dodge so frequently that it is a pain just to fight them, and most of them stun or freeze as well. Every pet I've had thus far has been worthless, dying in seconds to any enemy and only serving as a stunner. Backstab is only usable on non-aggressive enemies or by blowing a stealth or stun. The same music is used for all the zones. The quests are an extreme grind. The magic damage increasing accessory is worthless, as you can scarcely cast spells, and even then, five percent is scoff worthy. The fact that spells can miss just makes it more pathetic. The only good thing about this game is the idea behind it, which is poorly implemented and is made painful rather than fun.
I have all the in-game achievements (plus the impossible badge) and I have yet to die more than twice unintentionally. 50 deaths is ridiculously boring.
Interesting idea, but your mute needs some work still. It doesn't mute the sound of mouse clicks in game, and it immediately turned back on when I started a game. But everything else is good as far as I can tell.
The end screen says "GAME OVE". Also, this is a rather generic match game. Nothing too special about it. Maybe you should try to add something to make it more difficult, such as a larger amount of cards, and a time limit?
 "Epic Battle Fantasy 4"){kind=icon}
 "Mardi Gras Mayhem"){kind=icon}
 "Gun Mayhem"){kind=icon}
 "DuckLife3: Evolution"){kind=icon}
 "Just Chatting"){kind=icon}
 "Let the blood be your guide"){kind=icon}
 "LARRY and the GNOMES"){kind=icon}
 "Necronator"){kind=icon}
 "Castaway"){kind=icon}
 "Cell Warfare"){kind=icon}
 "Rise of the Castle"){kind=icon}
 "Road Criminal I"){kind=icon}
 "Creeper World Training Sim"){kind=icon}
 "Blocks in Flash"){kind=icon}
 "splat quito"){kind=icon}
 "Men of honor"){kind=icon}
 "The Archer"){kind=icon}
 "CHECK YOUR MEMORY"){kind=icon}
 "Light UP"){kind=icon}
 "Stick tower defense"){kind=icon}