There are couple of options. Star Saber, Chaos Edge, Cyber Caliber, Omni Saber, or one of Blades of Time.
Ohhhhh, Blades of Time huh? I had a theory about time travel in this movie, so maybe I could be right haha.
Secrets were revealed to Mark Wahlberg the day he held his sword aloft and said, "By the power of Grayskull!" (It was either that or a Voltron joke ) That sword does look special. My guess is it's the Star Saber, which has regained popularity thanks to TF PRIME.
Film crew: "Hey is that a Star Saber in Marky Mark's pocket or is he just happy to see us?" /feel it, feel it
It's probably a sword the character jacks in one of the scenes, if they plan to do it. Or it's a Cybertronian toothpick.
Could be something like what Wheeljack had. It's there, but never used. If he does use it, it's probably a combat sword of some sort. Maybe that Samurai bot gave it to him, sort of like how Wheeljack gave his inventions to the humans in DOTM.
"and I became...Marky Mark Man, of the Funkiest Bunch in the Universe! Only three others share this secret. Our friends Meganfoxceress, Bay at Arms, and Explodo. Together we defend the fourth Transformers movie from....THE EVIL FORCES OF CONTINUITY ERRORS AND GIANT ROBOT TESTICLES!"
Oh God I'm hoping it's the star saber! I mean come on, what's a puny little sword wielding human gonna do to a 30-40ft Cybertronian?
I think Sam would like to have a word with you And he didn't need a sword. He killed Megatron with a cube and Starscream with a boom stick lol
I though it was fanny pack at first but these pictures proved me wrong: Mark Wahlberg & Nicola Peltz Film 'Transformers 4' with Jack Reynor | Mark Wahlberg, Nicola Peltz, Stanley Tucci Photos | Just Jared