Pros for narwhals:they are ungulates like rhinos and horsesCons:rhinos and horses are odd-toed ungulates, while narwhals are even toedthe horn of the narwhal is actually a tooth
Where's the narwhal?
Swimming in the ocean
Causing a commotion
Arctic Subnautic Surveillance Unicorn
Pros for narwhals:
Cons:
Onto your first con: The swordfish isn't an ungulate nor even a mammal.