Underwater Vortexes
Level 13 Obstacle
XP 800

Hazard: Four locations are filled with swirling waters. A vortex sucks creatures toward its center, then expels them.TriggerA vortex triggers when a nonaquatic creature moves into one of the vortex‚Äôs nine squares or begins its turn in the vortex or an adjacent square.AttackOpportunity Action      Melee
Target: The creature that triggered the hazard.Attack: +17 vs. FortitudeHit: The target is pulled into the center square of the vortex, takes 1d12 + 4 damage, and is slowed until the end of its next turn.Countermeasures     Athletics DC 27 or Thievery DC 25: A creature adjacent to the center square of one of the vortexes can plug or disable the vent that creates it by making a successful Athletics or Thievery check.

Published in Dungeon Magazine 158, page(s) 66.