Each of the dire unicorns is different in appearance. The beast Nahir, owned by the demon Lord Saragoth, is the colour of dried blood, with a mane of blood, a broken an twisted horn and breath of fire. Where his accursed feet tread nothing will grow. Another is Knightmare, black as night and appearing half bred with a dragon. There are others, some still serving the masters Shine had given them, others broken free and wandering the wild places, undoing what their natural unicorn brethren strive to protect.
Some of them possess some memory of the beautiful creatures they once were and find peace in the heart of silent forests (where it is best not to disturb them...) but others remain pure evil amd the world would be a better place without them.
Life expectancy: ageless
Solitary/Group (number): solitary