I know it's the easiest but it's the first time I get through it - used to have problems on snake guy and on the colossus guy - I did wipe on my first try on last boss because I didn't heal my tank enough during rhino phase but got him right away on 2nd try

ps: this is 'solo' and on a team who got all it's gear on it's own - never pugg'ed - wearing mostly the wellfare pvp epics on the shamans and the blacksmith blue crafted defense gear for the last boss (rest of the instance was done in the pvp gear as well and I never got crit or if I did I healed through it fine - despite having only something like 450 defense in that gear... I'm starting to doubt that I must have 535 for heroics and 540 for raids (which i do have in the other gear but with also like 4k less HP)