"Nth metal arrow heads, I never travel the earth without them"
History[]
Some of the enemies that Green Arrow and his sidekick Speedy face in there crime fight escapades are not vulnerable to regular attacks as they are Spirits. The variety of trick arrows that work best in those situations are razor arrows with nth metal heads, because Nth metal is most effective against the spirit world, these arrows are the go to weapon in those specific situations. Used in the episode Dawn of the Deadman, Nth metal proved to be effective against enemies such as Gentleman Ghost.