MerakSpielman
First Post
If you want the archers to pose more of a threat, put them behind cover (preferably arrowslits in the walls) and spread out to keep them safe(r) from area affect spells. Have the Blackguard give them +1 arrows and powerful bows. Have them ready actions to fire vollys at PC spellcasters if they start casting a spell. Make them be 1st level rogues (instead of fighter, as I am assuming you are doing) and let them attack from hiding. Etc...