I have decided to learn this song to help with open chords, some cool new chords, help with strumming and rhythm playing and it is one of my favorites. I am Mine by Pearl Jam.

However, the intro is a Dsus2 chord I believe. And it runs up and down the fret. And I believe the Dsus2 is just using the Root and the fifth (beginner trying to learn some theory here) so it "acts" like a power chord? Is a power chord, or just something that works with the song (regarding moving the "shape" up the fretboard). I guess, how do I list 0-5-6-0 as a chord?

Epi G400 '66 Reissue
w/ Airline Vintage Voiced Single Coil Pickups