Warnicorns are a breed of equine-like creatures that originate from Mewni. Their name is a portmanteau of the words "war" and "unicorn".


Warnicorns largely resemble the mythical unicorn, being horses with long spiraling horns. However, they are distinct from regular unicorns by having various physical characteristics such as scars, (an example is the warnicorn in "Star Comes to Earth" which has lightning bolt-shaped marks on the sides of its neck) and bulkier bodies. Their tails, manes, and hooves are usually darker colors, ranging from purple, blue, grey or teal to lighter shades like lavender. On the other hand, their skin tones usually contrast against them. Some warnicorns also possess colored teeth as seen in "Mewnipendance Day" and "Storm the Castle".


Warnicorns mostly appear in the series as creatures from Mewni. Star tames a wild light-blue warnicorn at the beginning of "Star Comes to Earth" and rides it to Butterfly Castle, where it causes trouble by destroying a door and the throne room wall. The same warnicorn appears in a video flashback to "Star Comes to Earth" in "Freeze Day".

In "Mewnipendance Day", Star magically summons a giant gray-coated warnicorn to act as Francis' steed in a reenactment of the Great Monster Massacre.

In "Storm the Castle", Mr. and Mrs. Diaz and King Butterfly arrive outside the remains of Ludo's Castle while riding warnicorns. Later, Mrs. Diaz slaps the flank of her warnicorn, causing it to run away, with her still on it.

In "Mr. Candle Cares", Star tells Echo Creek Academy guidance counselor Mr. Candle that she wants to raise warnicorns when she grows up, and she magically summons a warnicorn into Mr. Candle's office. Near the end of the episode, she summons the same warnicorn in her loft, and it makes a mess of her bedroom.

In "By the Book", Star attempts to cast a "Warnicorn stampede" spell. Her first two tries only succeed in conjuring a small, harmless warnicorn. After finally agreeing to read the page for the spell in the Magic Instruction Book, Star conjures the spell successfully, and a stampede of warnicorns overcomes Ludo and his minions.

In "Spider With a Top Hat", warnicorns are among the monsters that appear in Star's arsenal of spell creatures who live within the wand. They are close friends with Spider With a Top Hat, and one of their names is given as Rock.

In "Raid the Cave", Star and Marco ride a warnicorn on their mission to recover Glossaryck and the Magic Instruction Book.

In "Face the Music", Queen Butterfly rides a warnicorn into the Forest of Certain Death to visit Ludo's parents, Lord and Lady Avarius.

In "Holiday Spellcial", several of Star's Warnicorn spells attend a Stump Day party inside the wand.


Season 1

Season 2

Season 3


S1E20 War Unicorn
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  • It is stated in "Mr. Candle Cares" that Star's mother Queen Butterfly owns 19 warnicorns.
ved Star vs. the Forces of Evil Characters
Main characters
Star ButterflyMarco DiazLudo
Characters from Earth
Diaz family:
Angie DiazLinda DiazRafael Diaz

Echo Creek Academy:
Alfonzo DolittleAndreaAwesome OpossumsBeckyBlake LemonsBrittney WongChantalChelsea McNelseyEdFerguson O'durgusonFrancis SmithingtonHope HadleyIngrid BloomgrenJackie Lynn ThomasJanna OrdoniaJustin ArmbergLars VanderdudLeahMegan GandlymMiss SkullnickMoobs SquitsonOskar GreasonPrincipal SkeevesRaya RouseySabrina BackintoshStarFan13TimmyZeke

Amy VendrosianBon BonBrigidCharlie BoothJeremy BirnbaumLove SentenceLydiaMackie HandMarisolMrs. LiaoSensei BrantleyWarriors

Characters from Mewni
Butterfly family:
Eclipsa ButterflyGlossaryckKing ButterflyLady WhositsLil ChaunceyManfredManticoreQueen ButterflySir LavaboSir Scarsguard

Pony Head family:
King Pony HeadPony Head

BrianMr. CandleTom Lucitor

Buff Frog's tadpolesDennisDogbullFlower monstersFooldukeGlobgorHiggsHydraJohansen familyMewmansMillhorseMime GirlMina LoveberryPrincess SpiderbiteRich PigeonRuberiotWarnicorns

Characters from other dimensions
Magic High Commission:
HekapooLekmetOmnitraxus PrimeRhombulus

St. Olga's Reform School for Wayward Princesses:
GeminiGuardsMiss HeinousPrincess ArmsPrincess SmooshyRasticoreSt. OlgaSt. Olga's princesses

Quest Buy:
Cobalt FerreroQuest Buy sloth clerksRiddle Sphinx

Pixie clerkPixie EmpressPixie taskmasterPixies

Ben FotinoFather TimeHeliosHungry LarryJorbyKellyNachosNaysayaPreston Change-ORoySeahorseSeanSquaresTadTalon RaventalonWilloughby

Ludo's army
Bald eagleBeard DeerBearicornBig ChickenBoo FlyBuff FrogEmmittGiant spiderLobster ClawsMan ArmSpikeballsThree-eyed Potato BabyToffeeUnnamed bat monsterUnnamed crocodile monsterUnnamed flower monsterUnnamed frill-neck monsterUnnamed giraffe monsterUnnamed goat monsterUnnamed lizard monsterUnnamed mushroom monsterUnnamed two-headed monsterUnnamed warthog monster
Star Butterfly's creations
Butterfly monsterCloudyGiant magical squirrelsLaser puppiesMonster ArmSpider With a Top HatThree-eyed firecats