I need help with making my first character which is originally Heroes Unlimited. The character is an evil immortal Cecaelia-like mutant. I want it to have the abilities and senses of cephalopods. It can attack with its tentacles, clawed, hands, lobster pincers, and bite (the bite attack is not a must). I also want it to be able to breath underwater, survive the pressures found at all depth, immune to intense cold, have greater strength and durability underwater, walk on land, never ages and anyother sense that would help the character underwater.
What are some suggestions on making a good history of the character? I keep think it was born in the ocean. Also can I do to make the character original?
A tall male creature that is nine feet tall comes in. You notice from the waist up he is a human male with four arms. A finned crest runs along his head down to the middle of his back. His large eyes have orange irises and red scleras. Very serrated razor-sharp curved teeth line his mouth. The lower arms end in crab-like pincers while its upper arms are more human like, but they end in sharp hooked claws. Below his waist are six nightmarish looking black tentacles. Each tentacle measures ten feet in length.