I think that 3v3 with moonkin can work really insanely good boxed

Baiscly of the main reason that you will be 3 guys vs 3 guys as of your element of suprice. The normal problem for boxers in 3v3 is that 1 will be CCed the whole game and you are sorta 2vs3.. With stealthing in on their backs for a smart placment for your initial attack you should drop one really easily. Imagion those 3x starfire crushing down with non stop moonfire spamming the seconds after.

I have played some 2x moonkin + resto and that worked quite nice. But we had slightely low DPS since we was only 2 moonkins, so it was alittle bit about crit luck. If a starfire crits.. its a kill (Baaaam, 5k starfire )