Army Of Shadow

Master/shadow calling
Level/School: 9/conjuration (summoning)
Range: close (25 ft. + 5 ft./2 levels)
Effect: one or more summoned creatures, no two of which are more than 30 ft. apart
Duration: 1 minute/level (D)
Saving Throw: none
Spell Resistance: no

Reality seems to tear open revealing a dark rift. From the blackness a shadow elemental emerges. The first of many, it is ready to serve.

This mystery functions like the spell summon monster I, except as noted here. You can summon one elder, two greater, four Huge, or eight Large shadow elementals.