New monster: Gelatinous Rubik's Cube

Found one of these old puzzle toys, and inspiration struck:  It's the right size to fit on the table among all the player character miniatures, so why not make a monster out of it?  So I give you (for Holmes Basic):

Gelatinous Rubik's Cube
Move: 60 feet/turn
Hit Dice: 4
Armor Class: 8
Treasure Type: variable
Alignment: neutral
Attacks: 1
Damage: see below
Similar to its more common cousin, the Gelatinous Rubik's Cube serves the role of scavenger in the dungeon.  However this monster is  easily distinguished by the fact that each surface of this creature has a different color.  Moreover, the various magic the Gelatinous Rubik's Cube has devoured gives it certain powers.  Roll a die to determine which side is attacking and apply the result to the target:
     Die Roll  Color         Effect
       1            Red            2-8 fire damage, any flammables ignited
       2            Yellow      1-4 damage, causes blindness
       3            Orange      immobilized as per Web spell
       4            Green        1-4 damage, causes rotting mummy disease
       5            Blue          heals 1-4 points of damage
       6            White        2-8 cold damage, any armor frozen into immobility