# Demilich ## Regional Effects _Source: Monster Manual (2024)_ The region containing a demilich's lair is twisted by its presence, creating the following effects: - **Enervating Domain.** Whenever a creature other than the demilich or one of its allies finishes a [Long Rest](/Rules/Source/variant-rules/long-rest-xphb.md) within 1 mile of the lair, the creature must succeed on a DC 20 Constitution saving throw or have its [Hit Point](/Rules/Source/variant-rules/hit-points-xphb.md) maximum reduced by `dice:1d4|noform|noparens|avg` (`1d4`). This reduction lasts until the creature finishes a [Long Rest](/Rules/Source/variant-rules/long-rest-xphb.md) outside that area. - **Travel Ward.** Creatures can't use teleportation or planar travel to enter or exit the lair. If the demilich dies or moves its lair elsewhere, these effects end immediately.