Ronal the Barbarian (2011) on Netflix

Plot summary

In the land of Metalonia, the barbarian clan are the strongest warriors alive, and Ronal, who cannot fight, cannot swing an axe and cannot even blow the warning horn, serves them as a lookout. When Lord Volcazar's army falls on the feasting village, the barbarians are captured and only Ronal and Alibert, a bard in training, are left behind. Volcazar's sorcerer tries to resurrect the demon Zaal with the blood of the prisoners, and the spell fails because one barbarian is missing. Ronal goes to an oracle for help, with Alibert at his side. The oracle says Volcazar wears a magical suit of armor, and that the sword Kron used against the demon Zaal is the only weapon that can kill him, and it must be wielded by a fearless warrior.