A strange black substance begins to appear around the world which causes a mass mutation in humans which caused .01% of infected humans blood to turn black. They are known as Black Bloods. They posses increased physical abilities, regeneration, do not age, are sterile, can control their own blood, and can manifest a powerful weapon that is composed of this black substance.
Black Bloods all posses a unique physical ability. Some have been seen manipulating their own gravity, manipulating their own muscles, generating vast amounts of heat or electricity, increasing or decreasing their size etc. When using their powers or weapon their veins become more visible and can be seen as black cracks or lines, as well as their eyes becoming darker or black.
20% of people infected became covered in the black substance and mutated into powerful monsters known as Black Beasts. A Black Bloods weapon, physical power, and unique ability seem to be extremely effective at killing these Black Beasts that are highly resistant to normal means of termination. There is a small risk of a Black Blood becoming a Black Beast if they lose control of themselves.
What is your weapon?
What is your unique physical ability?
What do you plan to do?