There is a little spoiler here for those that have not seen the latest episode, "Alpha Omega." I suspected that Star Saber might disappear soon, because no way would they let the Autobots keep such huge advantage for long, but I didn't not expect events to turn to that Megatron would gain and keep the new advantage, while nullifying Optimus's. I imagined that both swords would destroy each other. So the purpose of the Star Saber is simply being the light that brings a mega darkness into the show? Or would it come back?