In the boss battles archer die like crazy. This is the biggest problem with them. They are waaaay too frail. It may be possible to do it on normal, since the bosses are generally low on health there, but on the higher difficulties, when a single mass attack kills something like 1/5 to 1/3 of the entire archer stack, things will look very grim.
In normal battles they rock. Hard. They are really, really great. However, if you want to complete the game with archers ONLY, the boss battles will be the biggest challenge.
__________________
|