Map of Mapping and Illusions (Magic Map)

This map functions at first as a map of illusions. After 20d4 charges have been used, the map has an 80% chance to change into a map of mapping (with 10d4 charges) and a 20% chance that it explodes, causing 2d8+2 points of damage to everyone within a 10' radius of the blast (save vs. spell for half damage).
Roll 	Effect
01-80	Reverts to a map of mapping with 10d4 charges.
81-00	Explodes for 2d8+2 points of damage.
Category:Magic Items
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Category:Encyclopedia Magica