Forest of Stone
Level 1 Obstacle
XP 100

A stone column rises from the ground with astonishing force.

Trap: Four squares scattered across the battlefield conceal a magic pressure plate.Perception     DC 10: The character notices a pressure plate.Arcana     DC 15: The character senses the presence of magic.TriggerThe trap attacks when a creature enters one of the trap’s 4 squaresAttackOpportunity Action      Melee
Target: The creature that triggered the trapAttack: +4 vs. ReflexHit: 1d6 + 3 damage, the trap slides the target 1 square, and the target falls prone.Miss: The target returns to the last square it occupied and its move action ends immediately.Effect Each trapped square fills with a 20-foot tall column of stone. The column blocks movement, but can be climbed with a DC 15 Athletics check. The columns grant cover and last until the end of the triggering creature’s next turn, when the trap resets.Countermeasures     Thievery DC 10: An adjacent character can trigger the trap with a successful check (standard action). The columns appear in each trapped square.
     Thievery DC 15: An adjacent character can disable the trap with a successful check (standard action). The square no longer triggers or launches a stone column.
     Athletics DC 6 or Athletics (without a running start) DC 11: A character who makes a successful check can jump over a trapped square.

Published in Dragon Magazine Annual.