That common merging way worked by surrounding one of the team, acting as the main damage Outputer spirit master. Others would release energy, augmenting and helping that Outputer to release an attack that was much fiercer than his current grade and spirit power limits.
The burden totally lied on the spirit master in the centre, not on the ones in the circle around, as anyone might mistakenly believe at first.
William knew the maestro of this combo attack was Lucas. The latter was the one who could modify his attack, to either accept or crush any attack added from those in the circle around him.
The attacks coming from the circle would have many anomalies and mistakes, not to mention contradictions against each other. It laid on the shoulders of Lucas to modify the output of his spirit power, to make sure the final attack would merge with others.
