necromancy 

Traditions arcane, divine, occult

Cast [>>>] material, somatic, verbal

Range 30 feet

Duration sustained up to 1 minute

Your magic dredges up a corpse or skeleton and fills it with necromantic life, and you force the dead to fight at your command. You summon a common creature that has the undead trait and whose level is –1; this creature gains the summoned trait. Heightening the spell increases the maximum level of creature you can summon.

Heightened (2nd) Level 1.

Heightened (3rd) Level 2.

Heightened (4th) Level 3.

Heightened (5th) Level 5.

Heightened (6th) Level 7.

Heightened (7th) Level 9.

Heightened (8th) Level 11.

Heightened (9th) Level 13.

Heightened (10th) Level 15.

Advanced Player’s Guide, page 214.