Poster showing Samurott standing on its hind legs and carrying its unsheathed seamitar
Samurott is a quadrupedal, blue, sea lion-like Pokémon. It has two pairs of pointed teeth, one in the upper jaw and one in the lower. Long, white whiskers extend from its snout and head, and it has a red nose and eyes. On the back of its head is a large, rounded beige helmet-like shell with spikes and a spear-like, pointed protrusion in the front. A dull bluish-gray seashell-like carapace covers its underbelly, and its limbs are covered with beige, sectioned bracer-like coverings, that appear to be made of seashells. The forelimbs' bracers contain swords called seamitars. The lower two segments of these bracers are the scabbards for the two swords, and the upper segment and spike make up the seamitar and its handle. Samurott possess three black digits on each limb, and a fin-like, splayed tail with the innermost section being beige.
When in battle, Samurott can stand on its hind legs and use one of its blades as a sword to fight. In the time it takes a foe to blink, it can draw and sheathe the seamitars attached to its front legs. One swing of its seamitar can beat opponents. It can silence foes with a glare or a howl.
Both Cheren and Arata have Samurott, with the latter obtaining it as an Oshawott.
Pocket Monsters BW: Meetings with the Legends
Touya has a Samurott, which evolved from his Dewott.
Cedric Juniper has a Samurott that first appeared in At Liberty on Liberty Garden. It is used in the final battle with N, along with Black's Emboar and White's Serperior. It was formally an Oshawott intended to hand to starting trainers, until N came to attempt to liberate the starter Pokémon. The Oshawott remained, while the Tepig fled and N made off with the Snivy (the same Snivy who eventually joined White).
Samurott is the only fully-evolved Water-type starter Pokémon that is not in the Water 1 Egg Group.
While its pre-evolved forms are based on otters, Samurott's design is also heavily based on a sea lion and an armored samurai. While it was decided that Oshawott would be based on an otter, the designers had issues in creating a fully evolved form which was more interesting than just a bigger otter standing on two legs. At that point Yusuke Ohmura went to see real-life otters at an exhibit, but his attention was rather caught by the strength displayed by nearby sea lions, and thus decided that the fully evolved form would possess the latter animals’ body shape. Furthermore, to represent the variety in the human population of Unova, it was decided that the evolutionary families of the starter Pokémon would be based on the West, China and Japan. In the case of the Oshawott family, it had to represent Japan, and thus was based on Japanese samurai. Samurott's inspiration might also come from the lifespan of a samurai, from a child (Oshawott) to a military commander (Samurott).
Samurott's tail may be based on a Japanese war fan. The "helmet" over its head appears to be based on the rare-spined murex shell. The markings on its chest make it reminiscent of a giant otter. Its ability to withdraw, attack with, and return its blade may be a reference to iaido, a Japanese martial art that uses similar swordplay in combat. Its whiskers bear a great deal of similarity to the facial hair found in some menpō, a type of facial armor employed by samurai.
Samurott may be a combination of samurai and otter.
Daikenki may be a combination of 大 dai (great), 剣 ken (sword), 鬼 ki (demon), and 剣鬼 kenki (devilish swordsman).