Reading Phoenix Locklear's build gave me the idea of this similar, but different spec.
I used to +1 Air offhand giving me +1 Air on 1/5 spells.
Cast blind first on warriors and rangers.
Then once the action starts, begin the combo.
Its dead simple and you cannot get the timing wrong.
Cast the spells in order. Lightning Surge takes 3 seconds to activate once cast and knocks the person down, allowing Orb to hit. Orb takes 2 seconds to cast and about half a second to fly to target. Shatter takes about 1/4 second to cast.
If you time it right (which isn't hard), you should get 106(surge)+106(orb)+40(shatter) +100 (deep wound) + 60(lightning strike) = 410 damage all in one second with the target knocked down.
You _dont_ have to wait 10 seconds for phantom to end. You can also almost _immediately_ start the chain again (without waiting for mind burn recharge)
Playing, I've seen hits from my orb of over 140. From what I've seen if _anyone_ assists you or if the target is damaged, he is insta dead.
Of course, this stuff probably isn't good in gvg since the surge gives too much warning. I suppose you could mix in with an otherwise hex heavy group build to mask it.
Its also better to use it on nonmonks since good monks will likely cop this stuff asap once they see it. If the monk only sees a pink triangle without health moving, he may not be worried that much to remove it from a friend.
If he doesn't remove it, he will usually not have the reaction time to heal once the combo is on (I was able to insta kill quite a few times with this build with the opposing monk still standing).