From Pathfinder Society Scenario #3-15: Cavern of Sundered Songs, which isn't enabled.

Eltha Embercall (9-10)

CREATURE 9

UNIQUE MEDIUM DWARF

Perception +20; darkvision

Languages Common, Dwarven, Sakvroth, Wildsong

Skills Athletics +18, Crafting +16, Darklands Lore +16, Nature +20, Stealth +17, Survival +20

Str +2, Dex +2, Con +4, Int +1, Wis +4, Cha +1

Items Staff, Hide Armor, Scroll of Heal (Rank 5)

AC 27; Fort +17, Ref +15, Will +20

HP 140

Speed 20 feet

Melee Staff +16 (two hand d8), Damage 2d4+2 bludgeoning

Primal Prepared Spells DC 28, attack +20; 5th Cone of Cold, Death Ward, Impaling Spike; 4th Freedom of Movement, Heal (×2), Shape Stone; 3rd Faerie Fire, Fear, Haste, Heal; Cantrips (5th) Acid Splash, Light, Ray of Frost, Stabilize, Tanglefoot

Steadying Stone

If Eltha rolls a success on an Acrobatics check to Balance on uneven ground composed of earth or rock, she gets a critical success instead. As long as she remains on the ground, she has a +3 circumstance bonus to her Fortitude or Reflex DC against attempts to Shove or Trip her. This bonus also applies to saving throws against spells or effects that would attempt to knock her prone.

Pathfinder Society Scenario #3-15: Cavern of Sundered SongsOGL