Map of Mapping and Traps (Magic Map)

At first, this map functions as a map of traps with 20d4 charges. With the expiration of the charges, this map has a 70% chance of becoming a map of mapping (10d4 charges) and a 30% chance of being destroyed, inflicting 2d4+8 points of damage to every person within a 10-foot radius (save vs. spell for half damage).
Roll 	Effect
01-70	Reverts to a map of mapping with 20d4 charges.
71-00	Explodes for 2d4+8 points of damage.
Category:Magic Items
Category:Magic Books
Category:Encyclopedia Magica