I think it would do rather well. The moonkin could root one wow gold opponent down while the other is feared. Both classes could then apply their dots to the opponent. After that, it would be a simple matter to starfire/shadowbolt one of the opponents to death. The druid could heal in a pinch as well...

I havn't fought in the arena before so this is just my opinion. I have no idea if this team could actually work. I am more hoping it could. That way I wouldn't be leveling up this moonkin for nothing.

The main problem you'll have with that setup is against any team built to outlast. Two mana-using classes, one of which is using mana both for healing and DPS, might have trouble nuking wow gold someone down before you run OOM. You'll have to rely heavily on CC and burst damage to kill one person quickly. Between Cyclone, Fear, and Spell Lock you actually have a decent amount of CC, but your burst damage might come up short, especially against well geared PvPers.

don't forget 'force of nature', this actually really screws up casters cloth/leather and can make people freak out

druid balance burst damage can be decent.. also, druid shouldnt have a mana problems (innervate and if specc'd/geared right good regen while casting) especially in 2v2. i have a 70 heavy balance build druid teamed with a shadow priest and a rogue for 2v2. i never come out in moonkin form, gives away what i can do.
I actually play with a Moonkin in my 2v2 team and while we only had an 1850 rating last season, that was down to the amount played (we both raided extensively) than the potential of the Matrix.

Generally, we can CC/Burst down nearly anything (the DPS he produces is utterly amazing) and only really had problems with teams that can outlast us - or possibly CC/Burst more effectively - its very much an "all or nothing" kind of team.

I usually take the initial focus train but his healing is really quite wow gold awesome into the bargain so combined with a Healthstone even MS warriors don't give us too many problems because their healer is cycloned/CoT/Feared/DC'd while the Warrior gets the Felguard/Shadowburn/Dots/Searing Pain burst down.