Random Magic Wondrous Item

Cube of Frost Resistance

When this cube is activated, it encloses a cube-shaped area 10 feet per side. The temperature within this area is always at least 65 F. The field absorbs all cold-based attacks (such as ice storm, cone of cold, and white dragon breath). However, if the field is subjected to more than so points of cold damage in 1 round (from one or multiple attacks), it collapses and cannot be renewed for 1 hour. If the field receives over 100 points of damage in a to-round period, the cube is destroyed.
Cold below 0 F deals the field 2 points of cold damage per round, +2 points per each 10 below 0 (2 points at -1 to -9, 4 points at -10 to -19, and so on).
Caster Level: 7th
Prerequisites: Craft Wondrous Item, protection from elements
Market Price: 22,000 gp; weight: -