Big night for me tonight: we finally killed Malygos! That was the last thing I needed for the Champion of the Frozen Wastes title, the first of the omnibus titles you get for finishing all the hard instances. Very proud of myself and our guild. Malygos is a tough fight and for all our complaints about raid content being too easy this is Blizzard's biggest challenge on offer.
In the end we did pretty much what I described in Tanking Malygos/10. Spark management was particularly challenging today because we had no Death Knights, no Death Grip to move the sparks. Requires being very quick spotting sparks in the air and deciding which way to go after each Vortex, as well as DPS being very smart about where they kill the sparks.
Phase 2 is relatively easy for DPS, although healing is a challenge. The fight is really won or lost in Phase 3. It took us eight attempts, the successful kill saw us in Phase 3 with four minutes to spare, plenty of time to heal leisurely and grind him down. Quick thinking by Helias switching to healing helped keep us alive and a couple of our DPSers did a great job building up stacks of 20 to kill the boss. (I sucked: kept getting out of range and losing my DoT stack.)
I'm generally unhappy with the vehicle fights. I can't stand Oculus, I hated Teron Gorefiend, and Phase 3 of Malygos annoys me. I just don't like having to do something other than be a druid. But I think the Malygos design is pretty good. Phases 1 requires a lot of single target tanking skill, strong DPS, and strong main tank healing. Phase 2 requires multi-target tanking, moving DPS, and strong raid healing. And Phase 3 requires the dragon skill, a true leveller. If you're strong in two phases it gives you wiggle room in the last one, so it's not an all-or-nothing thing like Teron was. It seems fair to me, just hard.
A big part of our success in 10 man was hard work and smart play, going back at it week after week until enough people learned it to make it work. Now we need to get him down in 25 man. It seems a lot harder there, but we haven't tried it enough yet for it to really click.