totally forgot these instances im currently dabbing into heroics now and let me give you some of my first experiences

HC Hol - after finally working out how to avoid the 30% damage buff on the boss the serker stance was still too much for my druid even with about 35% dodge and 24k hp

normal Hol - putting this in becuase i cant see a real easy boxer way arround this.... The orbs just tear my team apart if i try to kite them it is defently going to end in fail when the boss remerges together and starts nukeing. So any clue how to do this at all would be great.

HC nexus - first boss i thought would be pretty easy.... well the first thing that gives you a badge is easy.. but the real first boss that BE mage is a nightmare, i can handle the fact that you get very little dps on her its the 2 times that she splits up i waste so much mana and time healing and trying to reposition everyone with polymorphs makeing that even harder that i could live past the 2nd split.

been trying heroics for a couple days since i hit 80 my shaman and druid are very undergeared. liturally all in crafted pvp blues. but its pretty depressing how fail these 'easy' bosses are. i really want a mage in the group to trivialise these encounters with dampen magic.

will give gundrak a go tonight