Freezing Hall
Object
Level 1 TrapXP 100

Detect Arcana DC 12

Immune attacks

Triggered Actions

Effect (cold) ✦ At-Will

Trigger: A creature enters the trapped 10-foot-by-10-foot area.

Effect (No Action): The triggering creature makes a saving throw. On a failure, the triggering creature is restrained and takes ongoing 10 cold damage (save ends both).

Countermeasures

✦ Deactivate: Arcana DC 19 (standard action). Success: The trap ceases to function for 5 minutes.

Published in Halls of Undermountain, page(s) 47.