[Obsidian]

I just finished a ToB with Mazzy as my archer and she was devastating.

If you are making your own character, consider a fighter as your archer. They have many of the benefits the archer ranger kit gets, grand mastery, for example, but can still use the heaviest armours. In ToB when range becomes less relevant, by then you should have grand mastery in another weapon, I'd recommend a two handed like spear or quarterstaff because there are some nice spears and quarterstaves. Impaler, spear of withering, Ixils spike, staff of striking/command/air/fire and staff of the ram are all really great weapons that rarely shine because no NPCs master them.

Just a suggestion.