Shadow Roil

Stealth +15 (expert)

Disable DC 32 Arcana or Occultism (expert) to weaken the tornado; three successes in any combination are required to disable the trap.

Touch Down [Reaction]

Routine (3 actions) The cyclone uses 3 actions to move, traveling up to 30 feet with each action and dealing 2d12+13 slashing damage to each creature in its path (DC 33 basic Reflex save). A creature needs to attempt only one save during the cyclone's movement, even if the cyclone moves over its space more than once. On a critical failure, a creature is swept up into the cyclone, becoming grabbed (Escape DC 33).

Level 10 · Complexity Complex

Stealth +15 (expert)

Disable Arcana DC 32 (expert) — or Occultism (expert) to weaken the tornado; three successes in any combination are required to disable the trap.

Trigger Two or more living creatures enter the area

Effect A spiraling column of shadows and crackling planar magic gathers 20 feet away, becoming a whirling cyclone of darkness 15 feet wide and 100 feet tall. The trap then rolls initiative.

Reset The cyclone disperses after 1 minute and resets after 1 day.