rly, only one weapon will be useless, but if u think about it, by the time u get the sixth weapon out, the game is already won... u rly only need 1 pulverizer and 2 eagle's eye for the control to work, as the PC is generally targeted on the permanents that are annoying (usually not towers/pillars/pends), so it's not needed every turn, which is why I figured just the gravity mark is enough