Shedder

n.	1.	One who, or that which, sheds; as, a shedder of blood; a shedder of tears.
	2.	(Zool.) A crab in the act of casting its shell, or immediately afterwards while still soft; - applied especially to the edible crabs, which are most prized while in this state.

Noun

1.

shedder - an attacker who sheds or spills blood; "a great hunter and spiller of blood" Synonyms: spiller

aggressor, assailant, assaulter, attacker, spiller