>>28381120Samurott looks nothing like an otter. Real life otters are slender creatures with a long and flexible body, somewhat similar to Floatzel. Samurott is more similar to a sea lion with otter hands. While it may be an agile swordfighter underwater, it looks like it can barely move on land, let alone usa a sword. If it had the physique of an actual otter he could be a plausible swordfighter both in water and on land, like Dewott itself.
An example of quadrupedal swordfighter done right would be the Swords of Justice, which can plausibly use their horns to fight.
Jangmo-o can use its horns or fangs as swords, or even have a blade on its tail like Seviper. It doesn't necessarily have to hold actual swords with his hands like Samurott.