We're introducing a lot of new rogues to our storyline. I'm kind of charge of the female rogues, and the woman who has always been Poison Ivy for me is Rose McGowan. We just introduced Ivy in the new ark, of course I haven't flushed out a lot of her character so far.
But what I'm working with currently, she her crime against humanity is she's a bio-terrorist / eco-freak. She prefers plant life to people.
I love the way she was done in Arkham Asylum with the almost embossing of ivy on her skin, I can't have that here, since we're functioning in Nolanverse, meaning we need to function on realism.
So that meant for Ivy --- no green skin, abilities to control plants (i do however see her stating that she can hear them talking to her per her mental illness.) or anything like that --- that's why she's become a bio-chemist and terrorist. But to still make her Ivy, I thought of giving her tattoos. Ivy tattooed all over her arms.
Harley is in there because I wanted to keep a link to all things and Matt said do a manip of Harley&Ivy, since they're like PB&J.
They're also the only female villains, no Catwoman doesn't count.