Neat!
1. do her Enemies need to breathe? because i kinda like the idea of her using that to her advantage, i.e dragging foes down, or sabotaging diving gear.
2.story wise, with enough blood, does the healing have limits? i.e limbs? I'm imagining her pulling the Deliberate Injury Gambit Trope in order to get somewhere, or to beat a boss that lacks that ability.
3.Nice, i'm guessing the hearts can be drained for blood?
4. can you pet the bloodhounds?
"She can't get inside houses uninvited,"
What happens if someone rescinds the invitation while she's inside the house? does she pull a True Blood and slide out? or does she just get damaged for as long as she's inside?