n tiny earth elemental 

Perception +6; darkvision, tremorsense (imprecise) 30 feet

Languages Terran

Skills Athletics +6, Dungeon Lore +4, Plane of Earth Lore +4

Str +2 Dex +1 Con +3 Int +0 Wis +2 Cha +0

AC  16; Fort +7, Ref +5, Will +4

HP 15; Immunities bleed, poison, paralyzed, sleep; Resistances bludgeoning 2

Resonance (aura, air) 30 feet. All wisps vibrate at a frequency attuned to their element, resonating with and empowering all creatures and effects sharing that trait. A creature in the area gains a +1 status bonus to attack and damage rolls for effects with the earth trait; a creature with the elemental and earth traits gains this bonus to all attack and damage rolls.

Accord Essence [R] (air) Trigger An ally within 30 feet that benefited from the wisp's resonance in the last hour is targeted by an attack; Effect The wisp detonates itself in a small elemental explosion that gives temporary Hit Points equal to half the wisp's current Hit Points to allies within 30 feet that have benefited from the wisp's resonance in the last hour. These temporary Hit Points last 1 hour. A wisp that uses this reaction is permanently destroyed, and it can be restored only by a wish spell or similarly powerful effect. If an ability would prevent the wisp's destruction (for instance, if the wisp is summoned and would merely be dismissed), Accord Essence has no effect.

Speed 20 feet, burrow 20 feet

Melee [>] tendril +6 (reach 10 feet), Damage 1d4+2 bludgeoning

In Concert When an earth wisp rolls a critical failure on a check to Aid, they get a failure instead, and when they roll a success, they get a critical success instead.

Bestiary 3, page 91.