Nixie

Creature 1

Small
aquatic
fey

Perception: +6; low light vision
Languages: Fey, Thalassic
Skills: Athletics +6, Nature +5, Stealth +8; Str +0, Dex +3, Con +1, Int +0, Wis +1, Cha +4

Wild Empathy The nixie can use Diplomacy to Make An Impression on and make very simple Requests of aquatic or amphibious animals.

AC: 16; Fort +6, Ref +10, Will +6; +1 status to all saves vs. magic
HP: 22; Weaknesses cold iron 3

Speed: 20 feet, swim 30 feet

Melee ◆ claw +7 (agile, finesse, unarmed), Damage 1d6 slashing

Primal Innate Spells DC 17, attack +9; 2nd water breathing; 1st charm, hydraulic push

Grant Desire ◆◆◆ (primal) Frequency once per day

Effect The nixie can duplicate any 1st-rank spell or produce any effect with a power level in line with a 1st-rank spell, but only in response to the request or desire of a non-fey creature. The creature whose desire is granted can never again benefit from that particular nixie's Grant Desire ability.

Source: Pathfinder Monster Core 2

Running this fight? Add the nixie to the initiative tracker: type its name and the AC, hit points and Perception for initiative fill in, and the book button shows this stat block mid-fight.