4th

PFS StandardContinual Flame  [three-actions] Spell 2

Legacy Content

Evocation Light 
Source Core Rulebook pg. 326
Cast [three-actions] material, somatic, verbal; Cost 6 gp of ruby dust
Range touch; Targets 1 object
Duration unlimited
A magical flame springs up from the object, as bright as a torch. It doesn't need oxygen, react to water, or generate heat.
Heightened (+1) The cost increases as follows: 16 gp for 3rd level; 30 gp for 4th, 60 gp for 5th, 120 gp for 6th; 270 gp for 7th, 540 gp for 8th, 1,350 gp for 9th, and 3,350 gp for 10th.

PFS StandardWall of Fire  [three-actions] Spell 4

Concentrate Fire Manipulate 
Source Player Core pg. 367
Range 120 feet
Duration 1 minute
You raise a blazing wall that burns creatures passing through it. You create either a 5-foot-thick wall of flame in a straight line up to 60 feet long and 10 feet high, or a 5-foot-thick, 10-foot-radius ring of flame with the same height. The wall stands vertically in either form; if you wish, the wall can be of a shorter length or height. Everything on each side of the wall is concealed from creatures on the opposite side. Any creature that crosses the wall or is occupying the wall's area at the start of its turn takes 4d6 fire damage.
Heightened (+1) The fire damage increases by 1d6.

Cantrips

PFS StandardDetect Magic  [two-actions] Cantrip 1

Cantrip Concentrate Detection Manipulate 
Source Player Core pg. 323
Area 30-foot emanation
You send out a pulse that registers the presence of magic. You receive no information beyond the presence or absence of magic. You can choose to ignore magic you're fully aware of, such as the magic items and ongoing spells of you and your allies.

You detect illusion magic only if that magic's effect has a lower rank than the rank of your detect magic spell. However, items that have an illusion aura but aren't deceptive in appearance (such as an invisibility potion) typically are detected normally.
Heightened (3rd) You learn the rank or level of the most powerful magical effect the spell detects, as determined by the GM.
Heightened (4th) As 3rd rank, but you also pinpoint the source of the highest-rank magic. Like for an imprecise sense, you don't learn the exact location, but can narrow down the source to within a 5-foot cube (or the nearest if larger than that).