The Assassin's Bow fills a role in Heroes very similar to a Reaver-type weapon in other games; it is focused on specifically giving the wielder advantages against colorless dagger wielders. When in combat with a foe armed with a colorless dagger, the foe is unable to make a follow-up attack while the wielder of the Assassin's Bow is assured to; similarly to Daggerbreaker without a HP threshold. As a bow; the Assassin's Bow also deals effective damage against fliers.
The Assassin's Bow lacks access to the Weapon Refinery for enhancements, however it can be evolved into the Guard Bow. At the time of writing, the Assassin's Bow is only wielded by Setsuna at default.
Effective against flying foes.