I have been perplexed why there were so few merpeople akin to killer whales or orca. In this case, I was curious as to why there was no such creature as an Orcataur. Mathilda, along with the rest of her kind, as well as the orca she resembles, specialize in certain prey. In this case, she hunts mermaids, selkies and other prey with mammalian characteristics. I was thinking of Mathilda to be a "Little Mermaid" OC.

The Little Mermaid © Disney