One tactic, although cheesy, could be an ig2000 fortress using advanced sensors, ptl and the green 1-banks to bump 2 ig2000s off one another, and still have good action economy. Could be a handy counter to phantom lists. It is certainly something defenders can't do.
But then you're not playing the game, you are abusing a loophole. That, for me, would be reason enough to pack up.