The Archer: Fugitive from the Empire (1981)

The hero is given his mentor's bow (the Heartbow) which chooses its new owner when passed on. It fires arrows that blow up like grenades, but can only be wielded by the one chosen to wield her. The hero is a member of a nomadic tribe wiped out by the Draikian Empire's forces. He attempts to find the wizard Lazar-Sa who might be able to help him. He is joined by a thief looking for adventure and cash, and the daughter of a goddess, Estra, looking to revenger herself on Lazar-Sa for crimes against her mother.