Help needed to beat Imperial Sanctum with a Mesmer

I've tried it like 5 times now , with real ppl and with henchies, but nothing seems to be working, anyone can help me?Should I go domination or illusion magic, and if you've got any builds that would help me at this mission, please link them.
Help meeeee

Domination and Inspiration, take Empathy and Spirit of Failure, with anything else.
For heroes, take SS and SV necros, two monks, then load up on physical attackers.

Always know how to position yourself and which henchies to take.

With my mesmer, I had interupts. Interupt the high damaging spells and your party will survive long enough to beat it.

Add me to friends if you wish and I'll help: Dargoth Alfazul.

Let me know what profession you want (I don't have an elementalist, and my Paragon and Dervish are not there yet). Everything else, I have.

Hi my ingame is Gwendolyn Star, shiro is reaally not that hard , it normally take 2 or 3 times to tweak the builds just right, i also got a badass necro, that i beat shiro with both in normal and hardmode, give me a pm , usually on after 5 pm eastern time, i be glad to come along and help you, memser shouyld be able to do some seroiuos huritng on shiro, sins, warriors, necros and mesmer do the most dmg to shiro

add me to ur freinds list, i constantly help people threw that mission, just buzz me in game, i have a perfect shiro mesmer build, my SS necro's(heros) make short work, and myself is a tank(wild blow)....

if it normall mode, just go Degen mesmer with empathy, take both tank henchies, 1 ele henchie, 1 mesmer henchie, monk hero(heros cant be banished), 2 assassins with good builds who inflict poison and or bleeding.
Mehnlo will be ur second monk(been in groups where he is our only monk)

if that dont work

stay degen empathy mesmer, but take PUG's(real people) wich should be atleast 2 SS necro's, 2 tanks(wild blow), 1 monk(hero preffered), 2 SF ele's with mehnlo being ur 2nd monk again<pwned hard mode in 2 seconds flat with that team(wasnt worth print screening with out heros)

Go as a domination mes with Empathy, and some degen if you want to - but Empathy is the only skill you really need to worry about. I'd suggest MoW with Spoil Victor, Olias with Spiteful Spirit, and Koss/Jora with Wild Blow. You don't really need any monking other than what Mhenlo provides, so take both warrior hench, the ele hench (iirc, there is only one available...?), and whatever else - the mes hench as suggested above is a good choice.

As for your bar, just keep Empathy on him at all times. You may want to use the Celestial skill at the outset, but it's not necessary. You may want to hit him with degen every now and then, but I'd suggest saving your energy for more Empathy. Then just spend your time managing your heroes bars - makes sure MoW keeps Spoil Victor on him, make sure Olias keeps SS on him, and make sure Koss/Jora removes his stances with Wild Blow. Take out the first spawned creature when it arrives, and you should be able to kill Shiro before he banishes a second person. I'd be happy to help if I'm online when you are. Good luck.

Edit: Forgot to mention...if he goes into his Meditation, hit him with as much direct damage as you can as fast as you can. E-Surge is a good choice for you if you have it, but any direct damage is fine.