Jan 26th 2011 7:56AM Overall i think there are some serious flaws in the tactics you provided.
As said before on Corborus its not wise to let the tank or anyone else for that matter get close to the adds that spawn from the crystals. These adds explode and give a debuff.
Best is to root them in place (frost nova is a win here) and aoe em down as fast as u can.
On Ozruk the one that does the spikes is Ground Slam. This is a frontal cone which normally only the tank needs to avoid (by moving into his back). If u ever find urself in front of ozruk try to move to his back asap. Alse melee needs to watch out not to stand 'in' Ozruk cause this might get u killed.
Once you have dodged this there is the paralyze-shatter combo. Paralyze will freeze u in place and shatter will just kill you (on HC) if you stand within 15 yards. The trick here is to indeed get a dot on urself (through boss spellreflect) and then run out of range.
Jan 26th 2011 7:18AM I was thinking exactly the same, its better to try to root them in place (frost nova is win here) and dps them from distance before they explode