Summon undead

Summon undead was a series of increasingly more powerful, evil summoning spells commonly in use by sorcerers and wizards of the Realms.

Effects
Like other summoning spells, a summon undead spell conjured one or more undead creatures from another place and made them appear within close range of the caster. An undead being was magically compelled to fight for the caster. A summoned undead could not be truly destroyed; instead, an attack that would otherwise destroy it instead sent it back to the place from which it was summoned where it reformed over the next day.

Summoned undead beings would serve the caster until the duration of the spell ended, which was anywhere from mere seconds to several minutes, depending on the power level of the caster.

Components
Like other arcane summoning spells, summon undead spells required verbal and somatic components and a tiny bag and an unlit candle as magical foci. They uniquely required a third magical focus, the carved bone from any humanoid creature. The complicated spell required more than five seconds to cast.

Levels
There were five levels of this spell:
 * Summon undead I
 * Summon undead II
 * Summon undead III
 * Summon undead IV
 * Summon undead V