Cube of Force (Magic Cube)

This device can be made of ivory, bone, or any hard mineral. It is about the size of a large die - perhaps of an inch across—and enables its possessor to put up a wall of force 10 feet per side around his person. This cubic screen is impervious to the attack forms shown on the table below. The cube has 36 charges, and this energy is restored each day. The holder presses one face of the cube to activate or deactivate the field:
CubeFace	Charge CostPer Turn/MovementRate	Effect
1 	1/1 	keeps out gases, wind, etc.
2 	2/8 	keeps out nonliving matter
3 	3/6 	keeps out living matter
4 	4/4 	keeps out magic
5 	6/3 	keeps out all things
6 	0/normal 	deactivates
When the force screen is up, the following attacks cost extra charges from the cube in order to maintain the integrity of the screen. Note that these spells cannot be cast either into or out of the cube:
Attack Form 	Extra Charges
Catapult-like missiles	1
Very hot normal fires 	2
Horn of blasting 	6
Delayed blast fireball	3
Disintegrate 	6
Fireball 	3
Fire storm 	3
Flame strike 	3
Lightning bolt 	4
Meteor swarm 	8
Passwall 	3
Phase door 	5
Prismatic spray 	7
Wall of fire 	2
Category:DMG Magic Items
Category:Encyclopedia Magica Magic Items
Category:Magic Items
Category:Magic Cubes