I thought I would give you some things to choose from)
1: Vampire (good one)

Libby hums as she holds the lollipop shaped as a skull. The small bat flys over as it landed on Libbys shoulder before chirping as Libby looks at them before smiling "hello dear" she says softly nuzzling them.

2: Japanese Demon Warrior

Libby moves to grab her katana as she looks around hearing a noise in the trees as she walks around the forest slowly "come out!... I know your there I can hear you!" She yells out.

3: TF Libby but human- (I'm running out of ideas-)

Libby jumps over the large metal shard as she moves her staff slightly that had a blade at the end of it. She landed with a small thud as some soldiers rush over pointing their guns at her "Put your hands up! You are surrounded and have no where to run!" Lennox yells as Libby looks around before sighing.