The tag manifests as a doorway-shaped medallion with edges that appear eroded and dissolving, as if partially consumed by the creek. Its surface shows faint ghost-impressions of rankings that once were, shifting like water. Faint bioluminescent crimson glyphs pulse along its border - ancient script indicating ranks that no longer exist. When held, it pulses cold in proximity to those facing elimination, detecting vulnerability. The center contains a window into absolute absence - not darkness, but VOID.

The Forgotten Threshold is the hungry mechanism of culling made tangible. It resonates in proximity to those whose position crumbles, whose confidence wavers, whose grip on their ranking loosens. It serves as both indicator and accelerator - those who feel its cold pulse know they stand at the edge of extinction. This awareness becomes part of the crucible itself.