Well, there's Deathstalker. This name clearly conveys the idea of someone who stalks their prey, in this case, their targets, and is associated with death. In many fictional universes, an assassin with this name would be feared for their lethal skills and their ability to hunt down their victims without mercy.
Viper. It gives the impression of a deadly and stealthy assassin, like a snake waiting to strike.
The 'Lightsaber Pistol' can be considered a cool gun name in certain Star Wars - inspired fictions. It combines the concept of the iconic lightsaber with the functionality of a pistol. It's a unique and exciting weapon idea, blurring the lines between melee and ranged combat. This name captures the imagination as it brings together two very different but equally beloved elements from the Star Wars franchise.
Well, there's Valkyrie. In Norse mythology, Valkyries are strong female warriors who choose the slain in battle. It's a name full of power. Then there's Lyra. It has a celestial quality, like the constellation, and can represent a girl who is both beautiful and tough. And let's not forget Xena. Xena is a well - known badass character from TV, and the name itself has come to symbolize a fearless, strong - willed woman.
Some cool names could be 'Galaxy's Edge', which gives a sense of the outer limits of the cosmos where adventures might occur. Another one is 'The Time Warp', which implies a distortion of time, a common theme in sci - fi. And 'Cybernetic Dreams' is also great as it combines the idea of cybernetics and the dream - like, often surreal nature of science fiction.
The Enterprise from 'Star Trek' is a very well - known and cool ship name. It has been on many adventures across the galaxy.
The 'Shield of the Realm Agency'. It gives an impression of an agency that protects the whole nation in the fictional world. Just like a shield, it stands strong against all threats.
Some cool names could be 'Stellar Horizons', 'Galactic Odyssey', 'Interstellar Echoes'. These names give a sense of adventure and the vastness of space which are common elements in science fiction.
Agent 47 from the 'Hitman' series. He is a genetically enhanced assassin with incredible skills in stealth, combat, and assassination. His bald head and bar - coded tattoo on the back of his head make him instantly recognizable.
One of the most famous assassin names in fiction is Ezio Auditore from the 'Assassin's Creed' series. He is highly skilled and his story is full of adventure, mystery and revenge.
Well, your OC could be a rogue ninja from a far - off land who has come to the Naruto world with a mysterious mission. They have a super - badass weapon, like a sword that can cut through any chakra - based defense. And their personality could be really aloof and mysterious, which makes other characters both intrigued and a bit intimidated. They might get involved in the major conflicts in the Naruto story, but on their own terms.