Optimus swung his Energon axe, and managed to hold his ground against the flurry. He raised it above his head and prepared to bring it down on Lilith. "Unicron is using you!" he said in between strikes, "Don't be a fool!" He transformed his axe into a sword.
[hider=Optimus' sword]
[img=http://tilallaremine.files.wordpress.com/2013/02/op-and-um-foc-vs-megatron-game.jpg]
[/hider]
((5 meters is less than half Optimus' height by the way))