User blog comment:Emptylord/Custom Champion - Nighthawk the Winged Fury (2013)/@comment-4290320-20121229185810/@comment-4708818-20130102102429

Probably because it comes from Dota2  which comes from dota which comes from Warcraft which... has it somewhere. I think the nightelves or the undead's gargoyles...... I'll look it up.