Well based on http://www.thottbot.com/?sp=33572 it says that invuln doesn't remove/prevent the movement slowing effect of Gronn Lord's Grasp, which is a component of the ground slam - http://www.thottbot.com/?sp=39187

http://www.thottbot.com/?sp=33525 is all the shows up in my combat logs.

A potion that makes you immune to the knockback sounds like it would be more useful than one that negates the damage :(

WTB potion that temporarily turns me into a pet.

On that note, is it confirmed that pets deal shatter damage? I've seen one comment about a water elemental so far.

Yes, I've seen a fire elemental as well as a Shadow Fiend deal the shatter damage.

Well yeah, I realize this. I'm just not particularly excited about Gruul at this point in time. When I've got 30+ people with Nightbane kills needing just Gruul in order to flag for Serpentshrine, then maybe it'll seem worth the investment, but flasking up and throwing mass consumables at this guy in order to get some Karazhan-quality loot just isn't something I want to do.

I'd be curious to hear from people in DnT/Nihilum if they think he's repeatable without Loatheb-style buffs and some class/spec-stacking. I know in Nihilum's screenshot they had a flasked raid, with 5mins left on their flasks, suggesting that raidwide flasking and buffing still had them falling short for almost two hours of attempts prior to that. If the buffs remain necessary, do those guilds plan to keep killing him aside from getting people attuned as needed?

It doesn't make you immune to the effect, it makes you immune to the damage.
The entire move works like this
1. Knockback
2. Slowing Effect and Shatter Stack
3. Stoneform upon 5 stacks
4. Explosion that deals unmitigated physical damage to people around you based on distance

Effects that make you immune to physical damage make you immune to the damage component of 4 only, everything else (including your own explosion damaging others) still happens with zero ways to stop it.

And Yea, all pets except phase shifted imps deal shatter damage.

Right, sorry. Basically, 10yd radius circles that do not overlap, or 20yd radius circles that do. Somehow the latter proved easier for me to visualize, so that's how I did it.

I just checked a frapsed try, when the kb happens you have :

Gruul the Dragonkiller begins to cast Ground Slam
2 sec later, you are afflicted by Ground Slam. This is when the kb occurs. ~2 sec duration with a debuff.
When the debuff fades, there's a new "you are afflicted by ground slam" with 5 sec duration debuff.
During those 5 sec, you get 4 stacks of "Gronn Lord's Grasp" (1 per sec), this is the snaring effect, 20% per stack.
At 4 Gronn Lord's Grasp, you get a debuff called "Stoned" which basically stuns you.
Then Gruul casts shatter and boom :)

Nihilum uses potions and other buffs a lot. If you go for as-fast-as-possible kills, thats the way to go imho. I am pretty sure they had one or the other flask on every persion in the raid and used whatever pots are necessairy to kill him. Nothing wrong about that really.

Regarding Shatter, from my experience it's definitely either chaining or more likely affecting people around you. At least when I got knocked up and landed close to others, the damage exploded. It's also definitely more then 10 yards. I had that distance to other people all the time and kept getting wrecked. 20y for 0 damage taken sounds about right.

For the invul pots, I think they are an emergency button when you get thrown up and land next to other people and with the 'dazed' debuff you have no way to get into a safe position. In that case everyone chugs a pot. Maybe it's even necessairy for melee dps to just use the pot in the later stages of the fight to be able to ignore shatter and do enough dmg.

I found a screenshot that was posted on #worldofraids on quakenet, when nihi downed him.

http://img180.imageshack.us/img180/2862/grrulip4.jpg

The pot bound to the F button looks very much like the pot in question to me. :)

/gasp



How often is this ability used?

Every 45-60 sec.

Praetorian might of been easier if you used circles half the diameter/radius and try to fit them in without touching (since estimating circle centers is hard).

Here's an addon that in theory should transmit player positions and record data if set to. That is if I didn't make any errors while writing it and its not been tested very in depth (meaning I've not used it on Gruul considering servers are down so briefily tested it on something else where it seemed to work overall).

http://acm.jhu.edu/~cryect/Stoned.zip

To enable recording of data change the first line of the Stoned.lua file from "Stoned_Recording=false;" to "Stoned_Recording=true;" then it will be saved in your SavedVariables Folder in Stoned.lua the data that gets recorded.

Then again this addon might not work at all. Also the coordinates it records in don't relate directly to yds but they should be linear related to it by some scalar value (once upon a time I had that scalar worked out but don't remember it anymore). Also, make sure you ping the map before each attempt since that is the reference point which all the coordinates are recorded off of.

Sorry, zero hours of sleep followed by four hours of sleep on consecutive nights will do that. :P

Anyway, yeah, that's obviously linear.

Yeah, definately.

Zigyal happened to the imp in the MT group that was accidentally not set to autophase shift.

Yep. On a second try, 25 seems possible. Of course for that to happen, ~17 of those are going to be hugging the wall, and that's a bit unrealistic given the practical constraints of ordinary raid composition and positioning.

Yeah, I made a try of it using a circle of 100 yd diamater (1000 pixels) and 25 circles of 20 yd diameter (200 pixels) and had plenty of space left over that I could remove what tiny overlaps I have.

Gruul is pretty big. Hitting him from there wouldn't be a problem for a hunter, mage, etc.

But yeah, the main problem is you aren't going to have 15+ people in a 25-man raid who can functionally make use of that position.

How large is the hit box though? It's 50 yards from edge to center if you keep him dead center. His hitbox would need to be almost a... 15 yard diameter or so for a ranged class to stand at the wall and hit him?

Well, hopefully Ground Stomp will be able to push back your ranged/healers that far back.

Really though how many melee are you planning to bring in a 25 man to Gruul?

Er, a 15yd diameter hitbox is nothing. Lucifron has a 15yd diameter hitbox, easily, and he's tiny.

Well, Hunters, Healers, Mages, Locks, maybe an elemental Shaman and moonkin druid? Honestly how many people will you have in melee? Obviously it depends on class make up but you've essentially got Rogues, Warriors, Enhnacement Shaman, Feral Druids and Ret Paladins. Thats at most 12 people, and probably at least 9ish. Is there any huge reason to bring more then 3 rogues or warriors?

That made sense in my head when I typed it. Maybe I meant 15yd radius for a 30yd diameter... that would make the distance from center to outer wall 35 yds. Makes more sense that way.