Seeking Advice: Druid and Shaman Duoing

[loramin]

I have a 56 shaman, and my friend is dangerously close to catching up with his druid. I'd love to duo with him, but I have to admit I've never done a shaman/druid duo before, so I was hoping to get some advice.

Basically I was just hoping others who have done this type of duo before could tell me:

A) What different approaches do we have for duoing (I know root/rot is one option, but are there other viable ways)?
B) How do we do those approaches most optimally (ie. what are the best zones to hunt in, best spells to cast, etc.)?

Thanks in advance.