Fold bleed zones cause Will saves (DC 15 minor to 20 severe) each hour or take 1d4 WIS damage and gain Fold-Touched.
Fold bleed zones are areas where the Fold leaks into real space -- a failed jump, a psion's death, or a Fold storm. The zone is divided into tiers based on intensity: minor (DC 15), moderate (DC 18), and severe (DC 20). At each interval (1 hour for ambient zones, 10 minutes for direct exposure), characters inside must make a Will save against the zone's DC. A failed save deals 1d4 Wisdom damage and imposes the Fold-Touched condition. Characters with psionic shielding gain +4 resistance to these saves.
Rules Reference
Field
Value
Duration / Default Formula
until Fold storm passes or exited; ticks at interval