He is JawTread! the Jawblade’s brother.
Mini lore:
Jawtread at first he looked similar to his brother, but he decided to build himself a body with actual legs, but still being able to swim underwater.
He thought that having magma blades underwater was stupid, had built a hand with very sharp nails.
P.s.
This MOC was made for the Herofebruary event on Instagram.