http://www.imdb.com/title/tt0360486/
http://en.wikipedia.org/wiki/Constantine_(film)
http://youtu.be/i_2Rfp2riv4?hd=1

After the movie from 2005, could you create Constantine in Skyrim? I know there would be a leap, leap from modern world to this fantasy world, but still.

He is a exorcist, how would you create this Constantine guy in Skyrim, this exorcist - demon killing bad ass.

What powers would he use?

I've never seen the movie but I could picture him as a mage type, one that doesn't wear the usual robes. There are plenty of necromancers, witchs, and vampires (especially with Dawnguard) that need killing.

ill use my rod exactly like in the lusty argonian

The Banish spell/enchantment might also fit pretty nicely.