Part of the armor on its anterior legs becomes a giant sword. Its cry alone is enough to intimidate most enemies.
– Pokemon White Pokedex
When it evolved to Samurott, Dewott went from Bipedal to all fours. Samurott has an awesome beard-mustache thing (even though they’re 12.5% female), as part of its samurai look. In the Pokedex 3D animation, it’s shown that those yellow parts on its front two legs are sheathes for its dual swords (you can see the hilt of the sword sticking out). Though it seems that these scallop-swords are extendable, ’cause they look longer when taken out than the sheathes.
Stat-wise, Samurott has good Attack and Sp Attack (slightly higher Sp Attack), but its Speed and defenses aren’t as good. It learns two Bug moves by level-up: Megahorn and Fury Cutter, probably due to the fact that it has a horn, and swords. Despite its Pokedex entry saying its cry is intimidating, it can’t have the ability Intimidate.