Its story
A broad, dark-steel greatsword with a jagged amber seam running from its crossguard to its point. Molten light shifts beneath the blade like a slow current, warming the wielder's palm while the air around it smells faintly of hot stone and salt. Its edge sheds sparks when drawn near old siphon works.
Lore
The Siphon-Breaker Greatsword is one of the four Cinders' united work, a weapon built to challenge the machinery that draws heat from the living Warm Current. Its answer-song near ancient siphon ruins is a warning, or perhaps an invitation; no keeper has learned which.
History
Formed from the Ignis-Cinder as part of the Siphon-Breaker, the sword was made to sever the World-Siphon's hold on the Warm Current. Its keepers carry it knowing that, near old siphon ruins, a low note answers the blade from far below.