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Kephess Hard mode Final Phase bug?

TheEvilEeyore's Avatar


TheEvilEeyore
05.15.2012 , 11:31 PM | #1
During the Kephess fight, In the instnace Denova, we are experience a teleportation bug from kephess during the second phase of him being the ground. we refer to is as the 5th phase..

1st phase is 3 robots,
2nd phase is mob packs
3rd phase pulsar droids.
4th phase kephess 100%-60%
5th phase Kephess 60-0% <---- THIS IS WHERE THE BUG IS OCCURING

After he channels gift of the masters and pulls everyone in.

Our Tank 2 taunts off Tank 1, as he is low hp from the giant purple channeld skill.
Kephess is a giant purple monster at this point. After he punts tank 2, Tank 1 Taunts back so that tank 2 can go drop purple pools. THIS is where the problem is arising.

So lets recap Tank 1 has the boss at this point tanking Kephess. Tank 2 is currently dropping purple pools. Randomly Kephess is INSTANTLY teleporting to tank 2 (the tank dropping pools), and hitting him for 30k with "Savage Arching Slash". This happens anywhere from 2-10 seconds after tank 1 taunts off him. After teleporting to tank 2 he just starts running back at tank 1 as if nothing happened.

We are 100% sure that he is not leaping as one moment he is on tank 1 30 meters away and the next moment he is ontop of the corpse of tank 2.

The raid make-up is as folows

2 Sage healers
1 Guardian Tank
1 Vanguard tank
1 Sentinal DPS
2 Gunslinger DPS
1 Commando DPS

Not sure that it matters but i think that the tanks are guarding the slingers.
Prim - 50 Jedi Sage - Krayiss Obelisk

Kihra's Avatar


Kihra
05.16.2012 , 01:01 PM | #2
Note that the death overview window lies about what kills you on this fight. You have to check raw logs. In general, the attack that kills a tank when they have Touch of the Masters will show up just *after* the Death in the raw combat log (not before).

If your death overview says you died to a huge Savage Arcing Slash hit, it is more likely that the tank died to Touch instead. The death overview often mistakenly represents a Touch death as a Savage Arcing Slash for the tanks maximum health.

Here are a couple of things to check for:

Make sure if you transition with the Savage Wound DoT ticking on a tank that you don't have that tank on Kephess following Gift. A tick of Savage Wound will count as damage taken by Touch of the Masters, and your tank will fall over dead. The death overview in chat will lie and attribute this to Savage Arcing Slash.

Make sure you toggle directions of knockbacks. Savage Arcing Slash has a huge frontal range. I don't know if this is a bug or not, but you can get hit by it while kiting and dropping circles even if you are pretty far away. Have your tanks basically alternate using directions, e.g., tank one gets knocked back to the west and drops circles on the west side of the room, tank two gets knocked back to the east and drops circles on the east side of the room, etc.
A home for busy adults seeking high level PvE in a respectful, mature atmosphere.
Kihra - Kinetic Shadow

TheEvilEeyore's Avatar


TheEvilEeyore
05.17.2012 , 04:33 PM | #3
Thanks for your insights. I am gonna have the tank dig through his logs to see what is going on.

We have has this happen with the boss at about 20% hp so it can't possibly be the Dot tick that is doing the damage. also its not cleaves that is killing the tanks. Well let me rephrase that, the boss is not just attacking one tank and the other tank dies off in the distance. The boss is 'teleporting' instantaneously to the other thank and hitting him for 30+k damage.
Prim - 50 Jedi Sage - Krayiss Obelisk

Kihra's Avatar


Kihra
05.17.2012 , 05:54 PM | #4
Quote: Originally Posted by TheEvilEeyore View Post
Thanks for your insights. I am gonna have the tank dig through his logs to see what is going on.

We have has this happen with the boss at about 20% hp so it can't possibly be the Dot tick that is doing the damage. also its not cleaves that is killing the tanks. Well let me rephrase that, the boss is not just attacking one tank and the other tank dies off in the distance. The boss is 'teleporting' instantaneously to the other thank and hitting him for 30+k damage.
Assuming it isn't just a bug, the best theory I have for why that would be happening is if your tank is taunting too early. The sequence of events is Savage Arcing Slash knocks back a tank and applies Touch. 0-3 seconds later Kephess casts Breath of the Masters. When this cast finishes all threat is wiped from the current tank, and Kephess will then go to #2 on his list. He will leap to that target and put No Escape on them and hit them for a bit.

The timing is very tight on this sequence (~14 seconds), so as the fight goes on with only two tanks, the taunt window will kind of naturally push later and later. Eventually you might find yourself taunting right after Breath, Kephess will leap to you, and you might still have a second of Touch left. That would be my guess as to what happened that would cause the tank to die. The No Escape leap is happening while the tank still has Touch.

One of the best ways to avoid this (assuming I'm right) is for the tanks to taunt as soon as the Breath of the Masters cast begins. If you taunt during a cast, Kephess will still finish the cast on his current target. This buys you a couple of extra seconds of time for your taunt to refresh, so that it will take longer for the taunt window to push to the point where you're having to taunt after the Breath is over.

As this taunt window pushes to after the Breath cast (because your taunt hasn't refreshed yet), It's vitally important that your tank not taunt Kephess before Touch has expired, since Kephess post-Breath is going to do a leap to put No Escape on someone. If you do find that the taunt window is such that Breath finishes casting but Touch is still up on the previous tank, then you just have to wait for Touch to expire before taunting... even if this means Kephess leaps to a DPS.

You can control what DPS Kephess leaps to as well by say having your sentinels deliberately not threat drop while everyone else does. Then if the tank is forced to postpone a taunt because Touch is still up (towards the end of the fight), then Kephess will leap to a DPS that has good cooldowns and can probably survive for the second or two needed before the tank is able to pick it back up again.

We actually just use three tanks on 16-man because of this slightly too-tight taunt window, and that makes it much easier to deal with. I imagine this is what you're running into on 8-man, but again, I'm just speculating without logs to look at.
A home for busy adults seeking high level PvE in a respectful, mature atmosphere.
Kihra - Kinetic Shadow

Synavix's Avatar


Synavix
05.17.2012 , 09:48 PM | #5
We adjusted our taunt timings during that phase like you suggested and it worked great for us tonight; oneshot with only a tank death due to a slow taunt. I'm still not sure about the boss teleport killing, that seems to be buggy for sure, but at least the mechanics were working correctly and it seems it was just a visual bug.

Much appreciated for the help.