Cryptid from the Underwaves

Frenzy 2: (Whenever a this creature attacks and
isn't blocked, it gets +2/+0 until end of turn.)
Mangle (At the end of the Cleanup step, put a
number of -1/-1 tokens on each creature equal to
the damage Cryptid from the Underwaves caused it.)
"For those sailors who truly loved the sea, their new
form was like a blessing. Reshaping them to be one
with the sea they love. Enough humanity remained
that they flocked to salvage wrecks. Enough shark
that such meant a feast as well."