Origin

Kelly was one of seven friends gathered in the Hollywood Hills to go on a "quest." They agreed to leave their phones at home while the explore the Bronson Canyon. While they argue over the one member who brought his phone, they are nearly hit by a giant meteor. The meteor turns out to be the stone with which the sword, Excalibur, was stuck inside. After one of the children, Fel, removed the sword, the rock exploded depositing six more weapons. The weapons themselves began to talk, possessed by King Arthur and his Knights of the Round Table. Kelly received a helmet. They promised to train the children to use the weapons so they will be ready for Mordred and his forces.

Creation

Kelly debuted in C.O.R.T.: Children of the Round Table #1 by Tom Taylor and Daniele Di Nicuolo