The blood elves, sin'dorei [ˈsiːndɔraɪ], [siːnˈdɔraɪ] or [siːndɔreɪ] in Thalassian ("children of the blood"), (Second Human Empire name Hamo Uill'kini), are an elven race native to Azeroth, hailing from the Democratic Federation of Quel'Thalas. They eventually joined the Axis of Empires to rival the Allies' High Elves.
Blood elves are biologically and physiologically high elves. Courtesy of their exposure to fel magic (the practice of which spread in a similar fashion to the orcs own exposure to the substance, tainting even those in its proximity who chose not to dabble in it), the eyes of the sin'dorei now produce an emerald glow. They typically have fairly long hair, generally do not grow their facial hair to gigantic proportions until old age, and generally stand slightly taller than their human gender counterparts. As a general rule, blood elves are also slim, athletic, strong, and graceful. Furthermore, they all have large pointed ears that tend to be greeted with admiration (or mockery) by other races.
Blood elves are 5-6 feet tall. Blood elven males typically have slender, muscular, and athletic bodies. They also possess long pointy ears, acute senses and keen sight in the darkness. Night elves have long, slanted ears while blood elves' ears are shorter and tend to point upwards. Blood elven females can possess much the same, albeit typically sporting a slim elven physique. Like all elves, blood elves are considered highly attractive by the standards of most mortal races. The sin'dorei are the favored humanoid form of the Red Dragonflight. though, they did joined the Alliance during the "Day the Multiverse Burned"