An all MA team sounds fun as hell lol
For MA, the only things I'd like to see are maybe porting some effects from newer MA powers (lethal DoT on a hard hitter, a cone), but also the suggestions I put in from the MA thread on page 2 of this subforum:
1) instead of a strict combo system, just expand on what Eagles Claw does where it grants a +crit or +damage boost to the next power. This could be a variety of things like end discount, +stun, whatever and will let you be much more freeform than needing to use X into Y.
2) Focus Chi is build up in disguise. Personal peeve of mine, if it is named different it should have a new effect. Keep the damage/tohit of course, but also add in a new effect?