From Dark and Darker Wiki
Spider Mummy
Enemy
Damage
11/14/19
Health
40/???/???
Movement Speed
???/???/???
Experience
2
Adventure Points
2
Description
Spider Mummies spawn from a Spider Jar, only 3 spiders can be active per jar. Spider Jars spawn an infinite amount of spiders until they are shattered.
Nightmare: Applies a stacking debuff (5max) that reduces Utility Effectiveness by -150 for 7s. Note that Utility Effectiveness is not yet implemented in the game.