@PoptartProdigy, I have another idea inspired by Bleach.
Ok, so it's long been established that ki can be fired from places besides the hands like feet, the mouth, and the eyes. From what you said, we can also channel ki through these other body parts to do other things, like hearing and seeing ki instead of feeling it. Well, if these parts of our body can be put to use, why not our blood?
(The following examples are to show where the idea came from and perhaps some visual inspiration for its use here by showcasing the differences in the examples.)
Take a look at these two energy attacks. The first is a Cero, which is a simple but powerful beam attack.
Now take a look at a Gran Rey Cero, which is a far more powerful Cero produced by mixing in the user's blood into the attack.
Can we use blood like we can our ears and eyes to do something with ki? Maybe we can convert the blood into its equivalent amount of ki to create a massively (literally, in a way) powerful attack? (The principles of e=mc
2 were used to make nukes so there's a kind of precedence for the idea.) Or maybe we can use it as a form of improved ki healing?