Shadow Roil
COMPLEX HAZARD 10 +15 (expert)
A cyclone of living shadows and planar magic surges around the area, attracted to living creatures.
DC 32 Arcana or DC 32 Occultism (expert) to weaken the tornado; three successes in any combination are required to disable the trap.
Touch Down
Two or more living creatures enter the area
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.
(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). A creature grabbed by the cyclone moves along with the cyclone and takes 1d12+7 additional slashing damage at the beginning of its turn, and it must attempt the basic Reflex save against the cyclone on the cyclone's turn, no matter where the cyclone moves. A creature that successfully Escapes from the cyclone falls from a height of 1d20 × 5 feet.
The cyclone disperses after 1 minute and resets after 1 day.
Pathfinder #202: Severed at the RootORC