You will always have a need for:
1. Your best cast-on-others invisibility. For a long time, this will be Invisibility, L27.
2. Your best 75% slow. For a long time, this will be Turgur's Insects, L51.
3. Your best group cure. For a long time, this will be Blood of Nadox, L52.
4. Your best curse removal. For a long time, this will be Remove Greater Curse, L54.
The rest will change every five levels or so (will want single and group where available):
5. Your best Focus buff.
6. Your best Stamina buff.
7. Your best AC buff.
8. Your best Strength buff.
9. Your best Attack buff.
10. Your best Haste buff.
11. Your best single target Direct Heal.
12. Your best single target Heal Over Time.
13. Your best Cani spell/ability.
14. Your best Resist buff.
15. Your best Resist debuff.
16. Your best Proc buff.
There are other things that raiders need that you probably will not.
For AAs, well, some of this info may need updating, but check out:
http://samanna.net/wiki/index.php/General_AAshttp://samanna.net/wiki/index.php/Shaman_Archetype_AAshttp://samanna.net/wiki/index.php/Shaman_Class_AAsand
viewtopic.php?f=9&t=6807I'm sure someone will jump in if I've missed something.