Sister of the Golden ErinysSource Hellfire Dispatches pg. 32The Sisterhood of the Golden Erinys is a women's monastic order named after a mercenary company of fiendish erinyes who often work under Eiseth, a Queen of the Night who fosters wrath and vengeance. Although best known for raising a generation of Isgeri youth in the ways of Asmodeus, the sisterhood is still fundamentally a martial order, training in a vicious blend of unarmed combat and esoteric weaponry.
The order has embraced many weapons in the time since its founding, but the current iteration under Mother Valka prefers the asp coil, a flexible sword of many segments. Most of the order's martial techniques focus on using the flexible weapons to capture the targets of their vengeance, while their fingers dig into those targets like the fangs of a viper, causing intense pain. The pain is often a punishment in itself but can also render the targets unconscious for capture. Older iterations of the order focused on death as a punishment, using swords and bladed scarves to swiftly dispatch prey, although such techniques are rare among the sisterhood in Isger. Although the organization has a long history in the shadows of Cheliax as the Sisterhood of Eiseth, the rise of House Thrune allowed a branch of that order to change their focus from worshipping Eiseth to serving the Church of Asmodeus. Following the Goblinblood Wars in Isger, the Chelaxian government desired to strengthen its vassal's military without giving it any ideas about freedom. Infrexus Thrune was deeply impressed by the sisterhood's training facilities and had recruited many of them as assassins and even as guards for the women of the imperial family. He offered the order his support to build orphanages across Isger, training a generation of children (and potential warriors) loyal to Hell. In exchange, the sisterhood recruited the most promising girls into their own ranks.
While they provide food and shelter for the orphans as promised, the sisters' guidance is harsh. The constant physical training, with even more assigned as punishment, resembles a military camp more than a traditional orphanage. They give their charges a classroom education comparable to aristocrats in Elidir but quite focused on the sisterhood's mission. Literacy and even arithmetic are taught from infernal ledgers, leaving many charges knowing more about Dis than Isger.
The promise of a new generation of sisters bore fruit, with the order growing exponentially through those early years. There are now far more than needed for training the next generation, in fact. Sisters can now be found across the Inner Sea, returning to their order's roots of avenging Hell's grievances. With the war, many of them have been working alongside the Chelaxian military or as spies, while others have found more comfortable positions with merchant groups like the Aspis Consortium.
However, nowhere near every orphan joined the sisterhood. Even among the women eligible to join, almost every child showed some degree of rebellion before reaching adulthood. The order encourages its members to sublimate pain by taking revenge against those who caused it but is silent on the topic of those who feel wronged by the order itself. Many of these rebels eventually return to the fold of the order or worship of infernal powers in general, but even more resolve to avoid those gods or directly reject them by embracing rebellion in the form of deities like Milani. Recently, a growing number have turned to Ragathiel as a symbol of vengeance who would support their case against the sisterhood.
Between the sheer number of children drilled in the basic forms of the Golden Erinys and how many have turned their back on the order, there's no shortage of people in Isger using some form of the sisterhood's arts. Reconstructing the full techniques of the sisterhood is beyond most practitioners, however, particularly those reluctant to accept the stain of the techniques' infernal elements. Despite the difficulty, a few gifted graduates of the sisterhood's orphanages have managed to find their own ways to Hell.
Additional Feats
Source Player Core pg. 215 Spring 2026, 1st PrintingSome archetypes include a list of “Additional Feats” that appear in other sources. The list includes each feat’s level, which might be different than normal when gained from the archetype. You can take the feat as an archetype feat of that level, meaning it counts toward the number of feats required by the archetype’s dedication feat. When selected this way, a feat that normally has a class’s trait (such as the fighter trait) doesn’t have that class trait.
Click here for the full rules on Additional Feats.
Monk Source Player Core 2 pg. 126 1.1Archetype Sister of the Golden ErinysPrerequisites at least two stances
* This version of the Fuse Stance feat is intended for use with an archetype and has a different level for access than the
original feat.
You have combined two stances into a single stance all your own. When you take this feat, choose two stances you know and combine them into a single fused stance. Give your new fused stance a unique name. When you enter your fused stance, you gain all the effects of both stances, including the requirements and restrictions.
If the stances both grant special attacks, you gain all those attacks. If a stance restricts you to one particular attack (such as
Crane Stance), you must abide by that restriction. If the fused stances have incompatible restrictions, the GM determines which apply, or determines you can't fuse those stances at all.