Your biggest challenge with IG10 is simply doing too much damage. Personally I don't have the fastest team in the world, but it's pretty much 100% consistent - Artak is my only damager, in relentless. Rest of the team is Mithrala, Helicath, Pythion, and Nekmo.

So survivable is best just go slow ?

Yes.  You have to control the pace of Damage to avoid getting smacked by Frozen Reckoning with the minions alive.  I use Emic instead of Helicath to keep cycling my active skills faster.  

My current team is Pythion, Emic, Artak, Lydia & Harima.  Mithrala is much safer than Lydia due to Lydia increasing the pace of damage with her debuffs, and I should probably switch, but this team works for me and has only lost once or twice in all the runs I have done.      

avoiding doing conventional damage, i.e. raw damage. relying on HP burns usually.

what's your roster look like?

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I finally got a team that's slow but does the trick but I'll take more advice 

Probably something like Artak (book him!), Siphi, Mithrala, Kimi, Tower. You can try adding in Ninja instead of Tower, but I think you'll be more consistent with the block damage.

I have matry tower warlord pythion Turvold it's slow but works takes me 98% of the time 

Could probably even do something like Mithrala / Kalvalax / Teo / Teo / Artak.  Or course this would be heavily reliant on your quality of Regen gear.

Sounds like a great way to get yourself killed if you're not careful :P

for sure swap out Martyr for Artak. That CA is a great way to kill yourself.

Burn activation doesn't proc the slam so it's not too bad.  Always that risk with IG in general. 

Absolutely agree with Kram.  Counterattack is awesome pretty much everywhere except IG.  

Another strat that is dicey is anything with Brogni.  That reflect damage off the shields can kill you if it Procs the Frozen Reckoning.    

How should I build artak

I have him in relentless, for hydra. 240ish spd, 350ish acc, everything else is w/e.

If u don't have a normal mode spider/IG solo farmer I would recommend regen and immortal.  The build will suffice for hard and amius.

I can do that I believe 

I do have spider And dragon solo farmer just not ig right now 

Artak can solo Normal Mode L20 with 4 food toons and does not need Regen to do it.  Mine is 5S Awakened (first four stars came from his event way back when) and geared with Perception, Fortitude & Divine Life.