Considering all the above, I've concluded that we're looking for something that can hold its own. I first turned to the war/mo which is a popular class. I thought at first the higher AL would be better than the extra energy provided by the other classes, until I realized this. Essence Bond and Balthazar's Spirit stack, aswell as Vigorous Spirit and Live Vicariously. That right there is 3 pips, which is too much for the warrior to hold, and if we want to do any damage, we'll need Strength of Honor, and use a sword with +15% when enchanted (which is a given), aswell as the shield with enchantment bonus aswell (45 hp and -2 dmg taken when enchanted i believe). I also considered judge's insight, but quickly realized it was too heavy to work with, especially with the focus a monk primary will be taking.
Now we're using 4 pips. With the attributes I'll list later, we're getting 22 hp per hit, dealing around 10-15 dmg on wars, and 20-30 on everything else, gaining 2 energy per hit taken aswell as an extra adrenalin strike. The damage could be better, however that can't be helped much if we're going for survivability. Now all we need to work on is a high defense to utilize the mass energy recieved when focused. 2 elites came to mind when considering this, and that was Shield of Judgement and Healing Hands. Shield of Judgement would indeed be the most affective, and good for warrior trains, however with the low recharge, it brings down the survivability as opposed to healing hands. Due to this, I chose healing hands over shield of judgement, however you can switch and make your own decision. They're both very fun to work with.
Now, these last 2 skills were tricky. I know I still need alot of defense if I'm going to survive the focus of 4 players. First I considered Breeze and Healing touch for the self healing. I found breeze very usefull to counter the DoT's and help on the focus fire aswell. However, Healing Touch wasn't as good as I would hope. I then realized, we're getting good adrenalin from Balthazar's Spirit, so why not take advantage of that. One skill came into mind when I thought of that, and that was Bonetti's defense. It combo's extremely well with healing breeze too, and also pulls up all your mp.
Now comes the attributes, which also were a bit tricky. We want 9 swordsmanship for the sword to be affective, aswell as tactics for the shield and boosting bonetti's. I was thinking about, and even tried doing a divine favor+divine boon for this, but it was just not enough healing to make up for the skills lost, and would require self heal spamming to be effective, which would mess up the damage dealt, and not as effective as healing hands + breeze + bonetti's. I then went for 10 healing and 8 smiting, for the 6 damage on strength of honor, 7 regen on breeze and 11 hp on vigorous and live vicariously.
As for armor, the +1 healing head piece is the most effective, judge's chest and pants for the defense, and since hands and feet have such a low ratio of getting hit, tattoo those.
So all in all, we have:
10+1 Healing
8 Smiting
9 Sword
9 Tactics
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Balthazar's Sprit
Essence Bond
Healing Hands
Strength of Honor
Live Vicariously
Vigorous Spirit
Healing Breeze
Bonetti's Defense
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+1 healing prayers head
Judge's chest
Judge's pants
aesthetics hands
aesthetics feet
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slot 1 - Sword +15% dmg when enchanted / shield +45 hp and -2 dmg when enchanted
slot 2 - Sword +15% dmg when enchanted / multi bonus healing prayers focus
Ofcourse, no build is invincible, but this one always has the arena scrubs wondering where to download the godmode cheat you're using

Suggestions are welcome, and I hope this helps. It certainly kept me buisy for a few hours
