The fact that Port has 12 cards in its pile made me think: Would IGG be a better card if there was another number of them then 10? Don't get me wrong, i don't mind the card, but i feel IGG is (as competitive players use it) too little about the decision when to spend money to curse your opponents, and too much about cutting the game short.
Another option that would remove the rush ability completely would be an IGG-Event, where you just pay some coins, maybe gain something for balance (Copper, Silver), and everybody else gains a Curse. As i said, the difference here would be that this makes the rush (nearly) impossible, not just harder, like a 12 (or 9) card IGG pile would.
What do you think? Is IGG rush an interesting strategy and i'm just missing the point? Or, asked differently, do you think IGG should or should not be about the rush? Would it maybe be imbalanced without the rush ability?