Bloodsports involves the use of blood during play/a session/and or during sex. It is very specific and there are major health factors. I have only practiced this with very close partners,that I have been with for years and trust implicitly, and after after we both had a blood check. The obvious health risks are far too great.
It is a huge turn on to tie someone up and use a blade on them, the feeling of trust and power is intoxicating. It´s probably for me as much of an artistic high to see the blood than a fetish, it is not something I can do everyday , but maybe one or two times a year but it is SO worth the wait.
I use my knives and swords in almost all my Dom sessions, but as you said, only to cut off clothing, bindings or just to threaten.
It is such a turn on, really, really does it for me. xx