Escaped Scuttleshark

Islandwalk, Amalgamate (At the beginning of your combat, you may sacrifice another creature, if you do,
this creature gains that creature's creature types,
keyword abilities, and gets +1/+1 counters equal
to that creature's toughness.

Since the war, the Simic combine have started
mashing monsters together practically at random
in a sort of unnatural selection in an attempt to
make the perfect being.