LMTR14 wrote:
until this card is banned I won't play anymore
Pardon my observation, but at this time, I see that you've completed six games. I find it highly unlikely that you've seen this card so much as drawn more than once.
I don't think that the problem with this card in long mode is that it can be played easily at the start of the match. If someone draws it that early, wow, lucky. You're likely to win.
The problem is when it's drawn in a match that's been going on for a while. Once it's in your opponent's hand, there isn't much you can do. Optimally, you keep his tower around 100 and stop attacking beyond that. Maybe you'll draw Dragon squadron. Maybe you have enough +tower cards to crawl to the top. Maybe you have a card that can discard a Rare. Maybe one of you will hit 800 resources. Someday. It becomes a deterrent, and an obnoxious one at that.
In my view, it's not that the card is too powerful and it ends matches quickly, but that it can easily draw the pace of the game to an abrupt halt, much as OotWL often does. It's a good reason to have Ambush in your decks, if not one of the Uncommon focused discard choices.