Image: Rebel Wolves / Bandai NamcoOfficial screenshot from Rebel Wolves / Bandai Namco.
Blood Guards are the most loyal and feared human servants of the vrakhiri, bound to Xanthe by blood oaths. They hit hard with two weapons, and you have to beat them before you can reach her.
They stay near Xanthe and her operations and attack as a unit. Their dual-weapon strikes come fast and eat your stamina if you block everything.
Do not turtle. Dodge the bigger strings and save blocks for single hits you can perfect-block into a counter. When three come at once, use crowd control or an Active Ability to split them up.
Around Xanthe, including the three guarding her ritual at the Svartrau Cathedral altar, and at camps tied to Xanthe's Recruiters quests.