elemental shaman statsFollow

Assuming you have the right spec, your stats don't have to be amazing. You only need 4% spell hit from gear (3% if you are Draenei) and then push for as high spell damage as you can, the rest with spell crit. I'd say try to get 15-20% base spell crit (25-30% lightning bolt crit) and around 600-700 spell damage as a minimum.

You could go with lower numbers because the point of a shaman at that level is to help boost everyone else's dps which you will do just fine no matter your own dps.