4th

PFS StandardBind Undead  [two-actions] Spell 3

Concentrate Manipulate 
Source Player Core pg. 318
Range 30 feet; Targets 1 mindless undead creature with a level no greater than bind undead’s spell rank
Duration 1 day
With a word of power, you seize control of the target. It gains the minion trait. If you or an ally uses any hostile actions against the target, the spell ends.

PFS StandardRouse Skeletons  [two-actions] Spell 3

Concentrate Manipulate 
Source Player Core 2 pg. 250
Range 60 feet; Area 10-foot burst
Defense Reflex; Duration sustained up to 1 minute
Misshapen skeletal forms erupt from a solid surface, such as a stone floor, and fill the burst. The area they fill is difficult terrain. Their grasping claws deal 2d6 slashing damage to creatures on the ground in the area when the skeletons first appear with a basic Reflex save.

On subsequent rounds, the first time you Sustain the Spell each round, you can move the area of skeletons up to 20 feet within the range of the spell and deal 2d6 slashing damage with a basic Reflex save to each creature in the new area.

Damaging or destroying the skeletons is irrelevant, as new bones pull forth from the ground to repair and replace any that are obliterated.
Heightened (+2) The damage increases by 1d6.

PFS StandardSummon Undead  [three-actions] Spell 1

Concentrate Manipulate Summon 
Source Player Core pg. 361
Range 30 feet
Duration sustained up to 1 minute
You summon a creature that has the undead trait and whose level is –1 to fight for you.
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.