What are the character traits for Nagina the snake?

Nagini, is a long, green female snake belonging to Lord Voldemort, with whom she had a special bond. She also became a Horcrux, after her master killed Bertha Jorkins. After Voldemort's initial downfall, he uses Nagini's venom as one of the ingredients for a potion in order to regain strength, which eventually leads to his rebirth. In "The Order of the Phoenix" she attacks Arthur Weasley, but he manages to survive. During the Second Wizarding War, she has to be destroyed in order for Voldemort to be finally defeated. Nagini is killed by Neville Longbottom with Godric Gryffindor's SWord, and is the last Horcrux to be destroyed.