Correct, it was flavour we got added to it’s backstory regarding Stromkar, the Warbreaker when we got this as the Arms artefact weapon as apart of Legion’s story.
A vykrul forged blade, imbued with elven magic and used to slaughter countless Trolls by the first king of the humans so they better run at the sight of it.
There was also something neat about it when equipped it allowed us to translate old god gibberish speak automatically since it was embedded into Zakajz the Corruptor for quite a while before we chanced upon him in Tyr’s tomb. Although not sure if this works now with the mog as it did with the actual Artefact itself.