This spell creates the lowest of the undead monsters, skeletons or zombies, usually from the bones or bodies of dead humans, demihumans, or humanoids. The spell causes these remains to become animated and obey the simple verbal commands of the caster, regardless of how they communicated in life. The skeletons or zombies can follow the caster, remain in an area and attack any creature (or just a specific type of creature) entering the place, etc. The undead remain animated until they are destroyed in combat or are turned; the magic cannot be dispelled.
The priest can animate one skeleton or one zombie for each experience level he has attained. If creatures with more than 1+ Hit Dice are animated, the number is determined by the monster Hit Dice. Skeletal forms have the Hit Dice of the original creature, while zombie forms have 1 more Hit Die. Thus, a 12th-level priest could animate 12 dwarven skeletons (or six zombies), four zombie gnolls, or a single zombie fire giant. Note that this is based on the standard racial Hit Die norm; thus, a high-level adventurer would be animated as a skeleton or zombie of 1 or 2 Hit Dice, and without special class or racial abilities. The caster can, alternatively, animate two small animal skeletons (1-1 Hit Die or less) for every level of experience he has achieved.
The spell requires a drop of blood, a piece of flesh of the type of creature being animated, and a pinch of bone powder or a bone shard to complete the spell. Casting this spell is not a good act, and only evil priests use it frequently.
Notes: Common for evil clerics (PHB).