Unicorn

Creature 3

Large
beast
fey
holy

Perception: +13; darkvision, scent (imprecise) 30 feet
Languages: Common, Fey
Skills: Acrobatics +10, Diplomacy +11, Stealth +8, Survival +9; Str +4, Dex +3, Con +3, Int +0, Wis +4, Cha +4

Animal Empathy The unicorn has a connection to the creatures of the natural world that allows them to communicate with animals. They can ask questions of, receive answers from, and use the Diplomacy skill with animals.

AC: 20; Fort +10, Ref +8, Will +11; +2 to will saves vs. mental
HP: 45; Immunities poison

Speed: 45 feet

Melee ◆ horn +12 (holy, magical, unarmed), Damage 1d10+4 piercing plus 1d4 spirit

Melee ◆ hoof +12 (agile, magical), Damage 1d8+4 bludgeoning

Primal Innate Spells DC 21, attack +13; 5th nature's pathway; 3rd cleanse affliction, heal; Cantrips (1st) light

Ghost Touch A unicorn's Strikes have the effects of a Ghost Touch property rune.

Powerful Charge ◆◆ The unicorn Strides up to double its Speed in a straight line and then makes a horn Strike. If the unicorn moved at least 20 feet, it deals an additional 2d6 damage on a hit.

Source: Pathfinder Monster Core

Running this fight? Add the unicorn 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.