The Bloodflow technique allowed Malakai to control the flow of blood around his body.
It was the start to many other techniques. With it, Malakai could learn to control the flow of blood to specific parts of his body, enhancing either his strength or speed.
When one advanced his control even further, he would be able to control his heart rate, either slowing it down or accelerating it to control adrenaline levels.
He could use it to remain calm under pressure or boost his physical output. It was the same with his blood pressure.
Controlling his blood pressure would let him avoid blood loss in the event of an injury, or even boost his power even more.
But these were all basic control of blood. Moving on from the earlier, as control increased, one would be able to clot their blood and aid in healing any injury fast. And then there was blood hardening.