a little derailing of the thread, but
Before the 3.0 patch, this macro worked:
/cast [target=Siaea-target] Lightning Bolt
or
/cast [target=Siaea-targettarget] Lesser Healing Wave
can easily changed in

/assist Siaea
/cast [harm] Lightning Bolt
/targetlasttarget (if you don't want them how you are targeting)
or
/assist Siaea
/cast [target=targettarget] Lesser Healing Wave

or a'm i wrong?