We were pretty confident when we got there last night, and after two hours of getting absolutely nowhwere (10 man) we sacked it. Rohash's shield? No problem. Dealing with Anshal's adds? An absolute nightmare. We tried literally everything to deal with them and nothing worked. Killing them before they pulsed? No, because two DPS are at Rohash for the shield. Kiting them (Survival hunter)? No, because they spawn in a spread and tend to ignore traps. Having all DPS blow through Rohash's shield and then run to Anshal? Not even close, they don't have time to kill them prior to jumping to Nezir. Piercing Howl turned out handy, but what's supposed to happen when I'm tanking Nezir?
Yet another encounter where the difference in difficulty between 10 and 25 man is criminally steep. If you don't have the spec to cheese it (Frost death knight), you will find this one absolutely horrendous - it shouldn't be attempted (in our experience) prior to probably 7/13; maybe even later. If you do happen to run with a DPS death knight and your other DPS are strong, it's a prime candidate after Halfus.
Our worst fight of the expansion, by a country mile.
Unwavering Sentinel: Tales of a Protection Warrior Running Wild.