The artwork is a visual pun based on the card's name; the samurai is replacing his prosthetic forearm with a larger one.
This weapon's appearance differs in its artwork and its non-card image in the anime. In the card's artwork, the weapon is shown as a gigantic prosthetic arm with claws. In the anime, the image displayed by Solid Vision shows it as a brass knuckle with three large drills at the end. This implies that if this card is equipped to a monster, that monster's weapon is replaced with a better version of it.
The samurai in this card's artwork appears similar to the samurai in the right of the artwork of "Path to Destiny".