Poison Ivy (Earth-43)

The Pamela Isley of Earth-43 was, as in other realities, the villain Poison Ivy and an enemy of Batman, who had become a vampire.

Pre-Crimson Mist
The full details of Ivy's early history are unknown, but she and Batman have clearly fought before; Ivy had hypnotized at least ten people into worshiping her sexually and then killed them with a toxic kiss.

Crimson Mist
After being brought back to life by Alfred Pennyworth, Batman descended upon Ivy's lair, his mere presence causing her plants to wither and die, and gave her the kiss she always wanted: he tore her throat open with his teeth and drained her of her blood, commenting that he could only want her while in the darkness and decay of corruption, subsequently decapitating her to prevent her from returning as a vampire and dropping her severed head off at the police department.