Unicorn

Beautiful, pure-white horned horses, unicorns are highly prized for their magical properties, including their horn, hair and blood. Born as golden foals, unicorns turn silver before growing their distinctive horn at age four and turning pure white as adults. Although there is significant value in unicorn hair and horn, especially in the creation of wands, the killing of a unicorn comes at a great price. Unicorn blood, distinctive for its silver-blue colour, will keep the drinker from death, but offers only a cursed half-life. This did not deter the likes of Lord Voldemort trying this method.