The "hero" of CHR. Most of the story involves him killing things or gaining new powers, occasionally at the same time.
Anti-Hero: Type V. He sometimes fights evil people and isn't completely devoid of altruistic qualities, but he does far too many terrible things and enjoys causing harm too much to qualify as anything else.
Artificial Limbs: He gets a robotic arm in Part 1 after his first fight with Corrupted Blade. Shortly before that, the Magun fuses to one of his arms.
The Atoner: At times, as it's implied he turned himself in to the police out of regret for killing Soku and her loved ones, and he decides to atone for killing a dragon by bursting from his belly.
Clear My Name: In Part 1, he's framed for killing civilians by Corrupted Blade, forcing him to testify in court and later, kill Corrupted Blade again when this fails. The webcomic adaptation portrays this as taking place in the Ace Attorney courtroom.
Fan Nickname: "Vashblade" or "Bladevash" seem to be the most popular.
Friend to All Children: At times, shows a soft spot for children, like when he plays with some, but is not above killing them (like with Soku) or threatening to kill them (when he threatens to kill a boy if he reports his presence or if he does not bring him food while he's in hiding).
Fusion Dance: He can bodily combine with other characters to gain their powers, but he can also fuse his swords together, and later on he learns how to combine his various "sides" and their respective Super Modes.
GodModeSue: Oh god..... Vashblade is incredibly overpowered and seems to pull random powers out of his ass which make him even stronger. At one point in the story he states "Not even god or Satin could stop me". Vashblade is more powerful than god. Oh and by the way, this is said in like Chapter 2.
Your Size and/or Weight May Vary: Infamously, he starts at 60,000 feet long, gets bigger, then inexplicably shrinks enough to fit inside a hospital or the co-pilot seat of a presumably small spacecraft. He's also stated to weigh 900,000,000,000,000,000 tons.
A nebulous force of evil with no clear goal besides possessing people and causing chaos.
Demonic Possession: Does this to Vashblade for a while in Part 1, though he eventually breaks free. It also possesses Spin off-screen.
In Name Only: Chaos in this story doesn't seem to be much more than a bunch of demons led by generic "dark gods". The traditional Chaos Gods aren't mentioned at all.
Unexplained Recovery: A common theme for the villains; they come back from being sealed, being totally destroyed and various other maladies several times each. Possibly lampshaded when Vashblade mentions killing a 'dark god' for the 900th time.
A little girl that loves Vashblade for some reason. She may be the same character as a little girl who appears near the beginning of Part 1.
Love at First Sight: Assuming she's not the same as the other little girl, she just walks up to Vashblade one day and tells her to stop hurting his Evil Knockoff because she loves him. She regrets this later.