Also known as: 侵晨, ヘリオス
A weapon in Honkai: Star Rail's Amphoreus story, a divine sword given to Phainon (Honkai: Star Rail) by Chartonus. It is a Greatsword with a sunburst-shaped rapier-style hilt.
For Danbooru tagging purposes, "Dawnmaker" has three variants depending on Phainon's form: the regular version associated with himself, a golden-bladed large sword associated with Khaslana, and a wavy broken-blade form associated with the Flame Reaver.