My initial thought on this would to create an Illusion/Storm Defender and take the Stealth power pool This would give you the ghost like powers of spectral wounds, summoning ghosts (phantom army), terrorizing your foes(spectral terror), and whispering evil thoughts into their ears (deceive). With Storm, you can get all the eerie environmental effects of a a ghost - wind, rain, thunder, lightning.
I might second guess the stealth power pool though because you get invisibility with illusion and stealth with steamy mist but it is the only way (I think) to get Phase Shift.
If you don't want the Storm power pool for the eerie effects, since you weren't really talking about a dead person type ghost, I would consider empathy or kinetics.
Thanks, good suggestions =).
For travel powers my Ghost-Knight took Teleport but I guess Flight would also work well.
I was wondering if any of you had ideas for ATs and powersets that best lend themselves to ethereal or ghostly heroes. I'm looking for something that lends itself to intangibility, see-through, difficult to hit, etc. along those lines, not necessarily all those qualities. My concept is not necessarily a dead person turned ghost, but more like someone who has achieved such conscious awareness of the immateriality of existence, that he can shift his body into immaterial states and his attacks seem like they come from an ethereal plane. Stuff like invis powers, phaseshift, Illusion control come to mind for me, any ideas or thoughts on this character concept?
Also, for those well-versed in CoV stuff, any speculations about CoV powers that would add to this concept?
Feel free to make CoH and CoV ideas!