You can find good description from here:
Oh, and first Spectres powers, Jordan has the same powers:
As a spiritual entity, the Spectre cannot be slain in the conventional sense, though he can be destroyed. As Corrigan he was still very much the same as he died. But as Spectre, Corrigan's personality is influenced by the Divine Wrath (which has no personality of its own) and he becomes somewhat colder and distant as a result. Since WW II, the Spectre's persona has become increasingly distant from his humanity.
The Spectre's powers were reduced after the Crisis on the Infinite Earths, but he is still the most powerful human spirit on Earth. The Spectre and the physical body of Jim Corrigan can exist independently of each other. However, if they do not reunite within 24 hours, Corrigan's body will die and the Divine Wrath will return to the Ether until a new Spectre is chosen.
The Spectre is intangible, can fly, turn invisible, inhabit and animate inanimate objects, and sense the intentions of people in the place where they plan to carry those intentions out. The Spectre knows many secrets of the universe and its inhabitants, though even he is not omniscient. The Spectre can sometimes get glimpses into the future, although this is not without great difficulty. The only time he was given a long, vivid glimpse into the future was when God granted him one in order to warn the JLA and prevent universal destruction.
The Spectre can be injured or even slain by sufficient magic force, most notably the Spear of Destiny. Also, if the human host dies, the current Spectre will be no more and the human spirit and the Divine Wrath will separate, each going to his respective destination in the realms beyond life.
Oh, and Spectre is about the same level as Living Tribunal...
Originally posted by eleveninches
You'd have thought that if spectre was one of the most powerful characters in DC, then they would have at least designed a better costume for him.
Yeah, his costume should look wicked like Spawn's, Angela's etc but I don't think DC has that kind of vision. It's mainly a tights, boots and emblem theme which doesn't work with Spectre well at all. Don't get me wrong, I love my DC characters but sometimes the designers need to think outside the realm that they do.
Originally posted by Daywalker
Yeah, his costume should look wicked like Spawn's, Angela's etc but I don't think DC has that kind of vision. It's mainly a tights, boots and emblem theme which doesn't work with Spectre well at all. Don't get me wrong, I love my DC characters but sometimes the designers need to think outside the realm that they do.
He looked waaaaay better as Parallax.