A named threat of Blighttide Waste, encountered rarely and never in numbers - real Dungeons & Dragons statistics, no auto-computed shortcuts.
Layered on top of the module's own combat AI, which still picks targets and positioning. The fight below moves through real hit-point-gated phases; every save DC and attack bonus computes from the stat block above at runtime.
Every attacker who gets close leaves with a little more of the waste on them.
A wide, burning cleave that answers anyone still standing close.
A disease nova and a permanent hardening of his own hide, DR 10 that never fades.
CR 25 is set against Blighttide Waste's own real ambient ceiling, not auto-computed from level alone - a genuine Undead 15 / Fighter 6 / Talontar_Blightlord 4 build at 25 total levels.
Hit points (380) follow this project's own average-hit-dice convention, and every save/attack bonus derives from the ability scores above at runtime - nothing here is hardcoded past the phase gates themselves.
Boss-flagged (bypasses the drop-rate roll, two loot-generation passes) and gated to a single spawn - only one Gorvek Cinderbone is ever up in Blighttide Waste at a time.