[Norfleet]

Originally posted by archaeolept:
robe of missile protection is the cheapest counter. that, and a bunch of non-hidden scouts. Really, all you have to do is make it not cost-effective for the casting player.

The Bunch of Non-Hidden Scouts tends to be even cheaper, because the scouts, due to their leather armor, and superior hitpoints, often survive the arrowing. With so many scouts in the province, the odds that the scout is actually hit twice and killed is much lower, and you're probably not concerned with the ultimate fate and afflicted status of your scout chaff anyway. Scout chaff is good technique for all such spells.