I posted this on my guild forums a while back which seemed to help a couple of the raid groups that were having trouble with Chimaeron, I thought other people might find it useful too.
Chimaeron is a fight that is all about timing. As a healer, it’s easy to freak out a little when the tanks are taking massive hits and the raid is often sitting at 1 health. However, with a clear understanding of Chimaeron’s abilities and timing the fight becomes very predictable and the healing becomes quite simple.
Here’s what the timeline on those abilities looks like:
0:00 Fight starts
0:00 Melee swing
0:05 Melee swing
0:05 Break applied to current tank
0:05 Chimaeron gains Double Attack buff
0:10 Double Attack occurs
0:15 Melee swing
0:20 Melee swing
0:20 Break applied to current tank
0:20 Chimaeron gains Double Attack buff
0:25 Double Attack occurs
One important thing to note is that the Break (which increases damage taken) will only stack up to 4 times. Because of this, the easiest way (for the healers anyway) to handle the tanking is for the first tank to tank for the majority of the encounter and take all the Breaks, while the second tank only taunts when the Double Attack buff is gained, takes the double attack, then the first tank taunts back.
What does this mean?
- The Double Attack tank must be topped off after each Double Attack.
- The main (Break) tank only needs to be kept above 10,000 health during the non-Feud phase.
I know that as a healer it’s tough to let a tank sit at such low health, but you’ll save yourself a lot of time, effort and mana by doing it this way.
The basic timeline for raid damage looks like this (numbers are rounded slightly):
0:00 Fight starts
0:15 Caustic Slimes cast (2 in 10man, 5 in 25)
0:20 Caustic Slimes cast
0:25 Caustic Slimes cast
0:45 Caustic Slimes cast
0:50 Caustic Slimes cast
0:55 Caustic Slimes cast
1:15 Caustic slime cast on raid
1:20 Caustic slime cast on raid
1:25 Caustic slime cast on raid
1:30 End of Feud
Most of the fight is constant and predictable:
- Chimaeron will start casting Caustic Slime 15 seconds after being engaged
- Caustic Slime is cast on 2 people at a time (5 on 25), every 4.5 seconds.
- After 3 rounds of Caustic Slime hits, there will be a Massacre (4.5 seconds after the last slime).
- Feud will start at approximately the same time as a Massacre.
- 15 seconds after the Feud starts, Caustic Slime will be cast on the raid every 4.5 seconds. It is cast 3 times.
- 4.5 seconds after the third Slime, the Feud will end and a Massacre will happen.
- 15 seconds after the Massacre, he will start casting Slimes again.
The only thing that is not constant:
- How many Caustic Slime ‘cycles’ will happen in between Feuds. Sometimes you’ll get 1 cycle of slimes and then the Feud will hit, sometimes you will get 2 or 3.
So what do we learn from this?
Healing before the Feud:
- If you are healing the people hit with Caustic Slime during the non-Feud phase, you must use your fast, direct heals (Regrowth for druids, Flash/Binding Heal for priests, Flash of Light/Word of Glory/Holy Shock for pallies, Riptide/hasted Healing Wave/Healing Surge for shaman)*. You only have 4.5 seconds before the next slimes hit, so you need to be able to get a couple 10K+ heals off in this time.
- You have 15 seconds to get the raid healed up to 10k after the Massacre.
Healing through the Feud:
- In normal mode, the tanks are not getting hit by melee attacks, so they don’t need any special attention – all healers should be healing the raid.
- Use AoE heals to heal everyone through this. Remember that he won’t start casting slimes on the raid for ~15 seconds after the Massacre, so don’t waste your damage mitigation abilities (Barkskin, Power Word: Barrier) by using them immediately.
- Plan your cooldown use ahead of time so you have some kind of large group heal or group damage mitigation up for each Feud (Tranquility, ToL, PW:B, Hymn of Hope).
Have fun storming the castle!
Moving on to heroic mode? I’ve got stuff to say about that too.