Necromancy
Level: Cleric 6, Sorcerer 6, Wizard 6, Urban Druid 6
Components: V, S, M/DF
Area: Several undead creatures within a 40-ft. radius burst
Saving Throw: Will negates
This spell functions like circle of death, except that it destroys undead creatures as noted above.
Material Component: The powder of a crushed diamond worth at least 500 gp.
Source: Player’s Handbook (Page 297)