The final Corrector program to be found Synchro was captured by Grosser shortly after receiving an important piece of Prof. Inukais mind. Synchro protected the doctors knowledge but his own memories were locked away and he was transformed into one of Grossers henchmen. With help Yui frees him from Grossers control but there is still a good deal of antagonism between Synchro and the other Correctors. He has a violent temper and his experiences make him something of an outsider among his teammates. Synchro uses Peaces elemental suit of Fire and has the ability to produce large bursts of energy sort of like chi blasts. Source: