Vixen is based on her appearance in the TV series Legends of Tomorrow. Although an edition size has yet to be announced, there are usually just a few hundred minifigures given away each day.
The minifigure joins the two previously announced exclusive sets, BrickHeadz Spider-Man and Venom and BrickHeadz Supergirl and Martian Manhunter. A Brick Fanatics opinion piece recently discussed the topic of LEGO convention exclusives after the LEGO Group told fans on Twitter, ‘It is traditional for exhibitors at San Diego Comic Con to offer an exclusive item. We certainly don’t mean any unfairness.’
San Diego Comic Con 2017 is running from July 20 to July 23.