Ba-Dum
Lucas didn't use the technique he had unearthed the earliest, the Blood Flow State. He didn't use any concept he had been rebuilt with, and come to master. His heart beat on its own, strong like a war drum, making his body start to heat up on its own.
His grin turned fierce, warlike, as his blood stirred with the feeling of a beast that had been shaken awake, stirred with the only thing that had never failed to excite man, out of fear, nervousness, or enjoyment. And he was enjoying the feeling of being alive, which he had not felt so intensely ever since he woke up a few years ago… No, which he had not felt ever since he had been schemed against and betrayed by Jack in the war zone that had defined the end of the previous era.