Half shark, half man! Fighting evil - that's the plan! 🎶

And -- inexplicably -- it has darkvision.

If I were GM, I would rule that it can technically use swimming through concrete to gain advantage on a sneak attack - but only after completing a DC 20 Will Save against spoiling the surprise by shouting "Jawesome!".

Street rogue shark, doo doo doo doo.

Yes, you have met the dangerous 208 year-old uncle of dr. octagon. I myself Mr. Gerbik. half-shark, half-man, skin like alligator. Carrying a dead walrus. check it.

I'm just a dolphin mam.

Ok now do Crazy Bones