The Unicorn is a mount for the Wood Elves and Bretonnia, introduced in Total War: Warhammer.
It's forehead adorned with a spiral horn, this noble mount carries the Spellsinger/Damsel where her magical abilities are needed most.
The Unicorn is an innately magical creature, but its selfish nature means that it tends to feel no kinship with creatures that were summoned or created through sorcerous means, despite their common origins. If anything, it pities such beings for their misfortune at having been created as anything other than a Unicorn. Unicorn ivory is a much sought after prize in certain corners of Bretonnian society, and many a gallant knight has met his end pursuing a Unicorn deep into Athel Loren.
Just as the brave warrior thinks he has cornered his prize, the creature disappears without warning, conveniently within a few paces of a swarm of vengeful spites or vigilant Waywatchers. Curiously, Unicorns are drawn to female mages as moths to a flame, and find the taste of magic intoxicating. Most Spellsingers and Grail Damsels find this an acceptable situation, as a tame Unicorn makes for an excellent steed. Furthermore, the beast’s nature protects its rider against hostile magics, with a devastating spell often resulting in little more than a slightly inebriated and emboldened steed.