# Unicorn ## Regional effects _Source: Monster Manual (2024)_ The region containing a unicorn's lair is changed by its presence, creating the following effects: - **Obscuring Foliage.** The unicorn and its allies have [Advantage](3-Mechanics/CLI/rules/variant-rules/advantage-xphb.md) on Dexterity ([Stealth](3-Mechanics/CLI/rules/skills.md#Stealth)) checks while within 1 mile of the lair. - **Positive Energy.** Whenever a creature within 1 mile of the lair regains [Hit Points](3-Mechanics/CLI/rules/variant-rules/hit-points-xphb.md) from a spell, it regains the maximum number of [Hit Points](3-Mechanics/CLI/rules/variant-rules/hit-points-xphb.md) possible. Additionally, the effects of curses are suppressed within 1 mile of the lair. If the unicorn dies or moves its lair elsewhere, these effects end immediately.