To maximize this:
SpoilerShow
To get an arrow from every archer hit him a few times then save the game. If he doesn't drop a frost arrow when killed, return to the save game and do it again. Eventually you'll be able to get an arrow from every archer.
And if you return to level 5 after clearing level 6, there will be 2 archers waiting at the top of the steps for you. At least there has been for me in 3 games.
And if you return to level 5 after clearing level 6, there will be 2 archers waiting at the top of the steps for you. At least there has been for me in 3 games.
