Well, people seem to have a common misconception about just what a Unicorn is, so let's set this straight, since SE seems to use a lot of other mythologically accurate items: Gungnir, Hrunting, etc.
The Unicorn, described by the Roman scholar Pliny in his zoological records(and many thanks to Bulfinch's Mythology for giving me the easiest way to reference this without having to go read Pliny's work), is "a very ferocious beast, similar in the rest of its body to a horse, with the head of a deer, the feet of an elephant, the tail of a boar, a deep, bellowing voice, and a single black horn, two cubits in length, standing out in the middle of its forehead. It cannot be taken alive."
It was later found that unicorns had a love for purity, and in one, and only one, instance in mythology, a virgin is used to capture a unicorn.
So, lets sum this up:
Unicorn:A terrible beast, with heavy feet, lots of strength and a mighty weapon, that can't be taken alive.
Warrior: A terrible beast, with heavy feet(hello low eavsion), lots of strenght(easy to see) and a mighty weapon(Great Axe anyone?), that can't be taken alive.
Yes, this makes sense.