Electro-sword

The electro-sword is a weapon from the Generation 1 continuity family.

Like the rest of his sword-wielding Predacon teammates, Tantrum also carries a sword. In his case, it's an electro-sword, which is perpetually sheathed in a web of powerful electic bolts that can disable his prey in addition to being sharp and pointy. Owie.

Blitzwing has an electron scimitar, a weapon that's been in use since ancient Cybertronian times. The neomaximal CatSCAN is also equipped with a pair of these weapons.

Finally, Splashdown favors an electron sword as well.