Combo pack is polybagged with redemption code for digital download of the issue.
This issue is a variant of Detective Comics (DC, 2011 series) #34.
There exist further variants:
Batman [Bruce Wayne]; Alfred Pennyworth; Harvey Bullock; Maggie Yip; Annie Aguila [The Eagle]; Dante (villain); Jonny Loman (villain, death); Kings of the Sun [Holter (villain)]