Immurement of the Mordant Hideaway
This hunk of stone contains a cavern interior dotted with small pools of bubbling acid that occasionally geyser.
Consumable 85,000 gp
Power Consumable (Standard Action)
You expend this immurement and change the terrain in a close blast 4 until the end of the encounter. Replace the terrain in the blast with the following terrain and effects.
*: The upper shelf is 2 squares higher than the lower section of ground (Athletics DC 28 to climb)
*: The pools of acid are difficult terrain, and any creature moving into a pool or starting its turn in one takes 3d6 acid damage.
*: At the start of your turn, roll a d6 for each acid pool. On a 6, make an attack: Close burst 1; +32 vs. Reflex; on a hit, the target takes 3d8 + 5 acid damage, and a -4 penalty to AC and ongoing 10 acid damage (save ends both).
Published in Adventurer's Vault 2, page(s) 91.