Level 26 DiseaseSilvery Sleep

The process of pertrification that turns dead primordials and deities to unliving stone begins to slow and stiffen the victim.

Stage 0: The target recovers from the disease.
Stage 1: The target's speed is reduced by 1 instead 2.
Stage 2: Initial Effect: The target's speed is reduced by 2.
Stage 3: Each time the target becomes bloodied, it is slowed (save ends). If the target is slowed because of this disease effect and is reduced to 0 hit points, the target is petrified.
Stage 4: Final State: Each time the target takes damage, it is slowed (save ends). If the target is slowed because of this disease effect and is reduced to 0 hit points, the target is petrified.
Check: At the end of each extended rest, the target makes a check if it is at stage 1, 2, or 3.
18 or lower: The stage of the disease increases by one.
19-27: No Change
28 or higher: The stage of the disease decreases by one.

Published in Open Grave, page(s) 123.