Darn, I got all excited when I saw the subject line, thought you were POSTING one, lol. (But then, I DO get easily excited.) My preference here would be on a helper macro, not an AFK automated main. i.e., one of your helpers runs off to the basement to do the hail upon your manual command.
Speaking of which, I did a little log parsing on that MM and found:
1) ...that the cleric does as much melee damage (DPS) as the warrior on straight melee
2) ...that any warrior not spamming Lesion IV (DOT) during the mission is cheating the group out of a FULL 50% boost in DPS. No kidding. Both pickup groups I was in had some members
not using it at all. (In fact, one guy was barely playing. He had practically no cumulative damage at all, and no--he was not the cleric, (damn freakin' little leech...) Hey, maybe he was a poorly written bot or a poorly played 2-box? Now that makes more sense.)
3) ...the excitement over the Pickclaw Wizards seems unfounded. The Pickclaw Warriors routinely had triple the offensive DPS output of the Wizards. I would still take out the Wizards early on principle, but it doesn't seem to be that big a deal.
This leads me to an idea that I wish I had time to try for 3-boxing. (sigh, I get so little time to play,
) Anyway, since the Cleric seems to have roughly equal melee abilities in comparison to the warrior (sorry, haven't had a chance to compare AC and HPs on those since I had this idea), what if you selected ALL Clerics for the party? Now hang in there, this sounds a little unconventional, but...
1) Every character gets a mana pool, therefore you have a huge healing factory (note that Temp is an MGB in this MM, and can be used repeatedly as a group heal)
2) With all that healing ability, it is not so critical to use your points on Healing efficiency skills.
3) In fact, if I remember correctly (wish I was at home to try it--and had the time), the cleric has a DD spell and the skills to increase DD damage. If you use your points to max out mana regen, mana efficiency, and DD damage---you might have a hell of a Healer-Caster-Warrior hybrid. The holy trinity of combat in one. ...or a pipe dream, sombody pinch me, lol.
4) Does 1 Cleric have enough mana to keep 2 warriors healthy during a challenging 5-mob pull? (I tried 1 warrior and 1 cleric with NO success.) Maybe, barely, but what if the Cleric was also contributing majorly to DPS and yet you also have 3X the mana pool? Intriguing. In a small group of a 3-boxer, the balance between DPS and healing is critical. But with this setup you would have both DPS and healing at your fingertips, ready to adjust to challenging pulls at any time. The worst case is that you have to sit and med at some point. Or, your main could still be the warrior if he has better mitigation (not proven yet in my parses), with 2 hybrids as your helpers.
So, my thoughts about a helper macro in this MM would be centered around a helper-Cleric that follows the main, auto-targets/assists and melees every mob by following your lead (making best use of your collective Offensive DPS assets), then spams nukes until their mana drops to N%, at which point it would conserve mana for heals. It would intelligently use group heal or individual heal/HOT to make best use of your collective mana pool.
In fact, during use I would purposely hold back my main a little until the cleric(s) had aggro now and then to spread out the damage and use group heal to efficiently manage the collective hit point pool. That is using the assumption that the group heal turns out to be more efficient than individual ones, not proven yet that I know of.
Finally, remember that these MMs are NOT traditional EQ, and the traditional proven class methods do not necessarily apply. They are essentially new sub-games with similar rules... only similar.
If someone is home right now, maybe you could try that combo and see how well it works? Also, please don't anyone post that little tidbit about the, er, "best" way to equip yourself to fight in this MM. No sense in bringing excessive attention to it.