Hawkman #18 Yotv

"Corrupted with an infection concocted by the Batman Who Laughs, Carter Hall's psyche is overpowered by the darkest of all his past lives: the Sky Tyrant, the villainous Hawkman of Earth-3! A merciless winged warrior with no remorse and no rival, Sky Tyrant is unleashed on our Earth. The only chance of stopping him lies with the fading consciousness of Carter Hall. The series that reinvented Hawkman's mythology to encompass all of time and space takes its next adventurous leap into the Multiverse!"