This is an edited Sudden Storm, which only needs 1 Ki bar to use, fires slightly faster, and fires more projectiles than the original, but is also weaker.
I thought of this skill for my OC Shilven along with wanting to mess around with Yuuki's "Yet Another" tools more, and I really like what I got! Only thing that bothers me is the name. Blood Storm is a cool name, but also doesn't feel right. Anyway, Happy Valentine's Day!