This week, we decided to go into Heroic Uldir after killing the first 7 bosses in Normal. We didn't actually get attempts on Normal G'huun. I rather think we won't actually attempt it until we get stuck in Heroic. The lure of higher item level gear is too strong for our leadership.
This fight was more or less the same as Normal, except there are laser beams below the elevator as it descends. You have to look below the elevator to see where the beam is, and make sure you avoid it as the elevator goes through it.
In our first attempt, I think everyone was trying to look for the beams. We successfully avoided them all, but the adds on the elevator wiped us. In the second attempt, we paid more attention to the adds and did the fight successfully.
Realistically, if you move as a group, you only need a few people watching for beams. The rest of the group just follows them around while focusing on adds.
This fight has a new mechanic in the second room where lasers come down from the ceiling and there is a row of swirlies which mark the safe spot. In the first attempt we all thought the swirlies denoted danger, and got wiped out by the lasers.
We also killed Mother in the second room, and never moved to the third room, where I gather there is another new mechanic.
Heroic Fetid Devourer
This guy hits like a truck. The mechanics are fairly straightforward, but it's pretty much a gear check for your tanks and healers. And in a way, dps as well, as you need to kill the boss before you run out of cooldowns.
We even lost the Thrash tank near the end, and then starting bleeding dps as different melee would run in and try to pop cooldowns to take the Thrash attack.
This is fight we're currently working on. Unfortunately, the strategy we're following requires some choreographed movement to deal with the blood vectors safely. Choreographed movement is a great weakness of ours. So I don't think everyone in the raid really understands it.
We'll see how it goes next week.
I wonder if we will drop Normal and continue working on Heroic. We have three bosses worth of loot, and I think we could to five. That's enough for a reasonable farm, and we'd be able to get back one and a half raid nights to work on Heroic.