Domains: Sky cavalry, the bond between rider and mount, the funerary rite the rider performs over the fallen griffin or drake.
Era of ascension: Great Expansion (~2,400 BSD). Cohort: current. Drashweir rose with the consolidation of Inavolin's griffin-rider companies into a permanent standing wing, when the company-discipline of mourning a lost mount as one mourned a sworn brother became a formal rite rather than a private grief.
Worshipped by: Inavolin griffin-riders foremost — the wing-officers, the saddlers, the company-priests who keep the feathers — along with the unmounted ground crew who never ride but who tend the beasts and are counted in the prayer pool by Inavolin custom. Tikhaya philosophical-discipline orders share the rite in a reframed form: their prayer is for the discipline of bondedness itself, abstract rather than specific to mount-and-rider, and a Tikhaya practitioner may keep Drashweir's rite over a teacher or a sworn pupil instead of a beast. Wendi drake-riders honor him with one inflectional change of weight: the Wendi rider prays for the lightning in the drake's lungs, not for the bond of the rider's hand on the bridle, and the change is doctrinal, not casual. (The worships edge is authored downstream on the worshipper, not here.)
The rite-at-mount's-death is what Drashweir presides over, and it is the slot in his theology that no other daemon fills. A rider whose griffin falls in battle is required by Inavolin discipline to dismount, regardless of the tactical cost, and to perform the seven-cut rite over the body before the wing returns to the air: to cut the bridle, to cut the saddle's main girth, to cut the hood, to cut the leg-jess, to cut the breast-band, to cut a single primary feather from the dead beast's right wing, and to cut a strand of the beast's mane into the rider's own hair. The seventh cut is the bond's unmaking. The feather travels with the rider for the rest of the rider's life, sewn into the inside of the riding-coat where the saddle does not rub, and is buried with the rider at the rider's death. A rider who has lost more than one mount carries more than one feather; a wing-captain whose coat lining is heavy with feathers is feared in a way that has nothing to do with the captain's competence.
The mount's mourning is the part Inavolin doctrine refuses to soften. When the rider falls instead of the mount, the griffin mourns — the bird-half goes silent for the season, refuses to eat from any hand but the dead rider's groom, and in roughly a third of cases will refuse a new rider for the rest of its life. Inavolin teaches that this is not animal grief; this is the daemon's hand on the mount, the same daemon who taught the rider the rite of the seven cuts. The Inavolin wings honor a griffin that refuses a new rider after losing its first; the bird is given to the company-pasture and fed on the company's hand for the rest of its days, and the company-priest reads its name into the prayer-roll alongside the rider's.
Drashweir's wing-temples in Inavolin keep one wall covered in feathers — single primaries from every griffin a rider of the company ever lost. The wall is not labeled. The lore-handle the company-priests recite at the laying of a new feather is: "when the rider falls, the mount mourns; when the mount falls, the rider follows." The second clause is the one the company takes literally; a rider whose mount has died and who has not performed the seven cuts is presumed unfit for the wing, and the wing-captain has the discretion to ground them on suspicion alone.