A Carmin Knife is vaguely triangular in shape with concave edges on one side of the blade and handle. The middle of the other side of the Knife has a circular cut taken out of it. The Carmin set of Knives is identical in design to the Trancheuse and Indigo sets, the only difference being the color. Where the Trancheuse Knives were grey, the Carmin Knives are shades of red, yellow, and orange and the Indigo ones are shades of blue.
Carmin, which is French for "Carmine", is an acid pigment that is the color crimson, much like the Knives.
Carmin's ground combo begins with a simple slash upward. From there, it branches into a spinning slash downward, and ends with a low, circular sweep, Knives brandished.
The aerial combo can be executed in one move: Larxene spins vertically, Knives brandished, ending in a slash downward with both sets of Knives. During this move, it can be chained once with another push of the button with another identical spin-and-slash.