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Tsulong

Terrace of Endless SpringProtectors of the EndlessTsulongLei ShiSha of Fear

This NPC can be found in Terrace of Endless Spring (2).

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MoP PvE Gear Guide

Heroic		Deadly
Important		Tank
DPS		Healer
Interruptible		Magic
Curse		Poison
Disease		Enrage

Tooltips and dungeon journal reflect ability values for one encounter version. Please refer to "Effect" section on spell pages to see values for all raid sizes and difficulties.

The Night

Tsulong struggles at Night with the Sha's corrupting influence. Bringing Tsulong's remaining health to zero while at Night permanently destroys the Sha's influence over him. When he reaches 100 energy, he temporarily purges the Sha's influence and radiant sunlight turns Night into Day.

Dread Shadows – The Dread Shadows created by the Sha within Tsulong inflict 3510 to 3690 Shadow damage on all players and increases their Dread Shadows damage taken by 10%. This effect stacks.
Nightmares – The Sha within Tsulong projects Nightmares at the location of a random player. The Nightmares inflict 12870 to 13530 Shadow damage and fear players within 8 yards of the impact for 3 sec.
Shadow Breath – Tsulong expels out Sha energy in a 30 degree cone in front of him, inflicting 28080 to 29520 Shadow damage and increasing Shadow damage taken by 100% for 30 sec. This effect stacks.
Sunbeam – Tsulong's attempts to resist the Sha allow him to protect the players from Dread Shadows. Tsulong summons a Sunbeam onto the battlefield, and the Sunbeam grants immunity to Dread Shadows for players standing within the beam. The protected area of the Sunbeam shrinks over time as more players stand within it.
The Dark of Night – The Dark of Night appears at a random location and moves towards the nearest Sunbeam. The Dark of Night extinguishes a Sunbeam upon reaching it.

The Day

During the Day, Tsulong gains the upper hand over the Sha corruption. Players may heal and aid Tsulong during the Day, and bringing him to full health while in the Day permanently destroys the Sha's influence over him. When he reaches 100 energy, the Sha corrupts his emotions and Night descends upon the Terrace.

Comments

Comment by 3xul

Tsulong is an encounter with two alternating phases called Night and Day, lasting 2 minutes each.
In 10 man mode he requieres 2 tanks, 2-3 healers and 5-6 DDs.

From the Lore PoV you don't want to kill Tsulong, but do some kind of exorcism on him, to purge the sha corruption. This is reflected by the fact that you fight him in the night, when the Sha of Fear overwhelms him and heal him at daytime.

Tsulong starts in the night phase with 100% HP. Any damage you deal, is heal for the daytime phase.
For example: You deal in the night 35% of his maximum HP as damage to him, so in the night he has 65% HP, while he has at daytime 35% HP. The fight finishes either when you bring him to 0% at night, or to 100% at day.

The Night Phase
Tsulongs abilities are very similar to all drakes abilities, except he has no tail lash.

Shadow Breath is a frontal cone attack, dealing high damage and creating a debuff, which increases shadow damage taken by 100%. As nearly all damage sources are shadow in this phase, a tankswitch is recommended after the breath.
Tsulong stacks Dread Shadows at any targets every second, which deals high damage after reaching 9 stacks or higher. This debuff is purged by running through a Sunbeam he creates at random positions. Standing in the Sunbeam will decrease it's radius and make it despawn after some time, so players should move through the sunbeam only for dispelling issues.
Nightmares is a projectile Tsulong fires in a volley. It is indicated by a swirly zone and targets take high damage and are feared for 3 seconds, when standing in this zone at the time of impact.

An idiot-proof way to handle the stacking debuff mechanic, as well as the volley, is to grorp beneath a sunbeam and move through it, when a volley is shot. This will most likely decrease your raids damage, but is an easy way not to $%^& up on those mechanics.

The Day Phase
In the day phase, Tsulong stands in the middle of the room and summons different kinds of Sha.

Embodied Terror are Sha with high HP. They cast a debuff called Terrorize on random targets (including Tsulong) which deals very high damage and has to be dispelled asap.
Five Fright Spawn spawn when a Embodied Terror is killed. They cast Fright which deals very high shadow damage to all targets within 30 yards and fears them as well. If Tsulong's Breath Attack has a too long cooldown, you want to bomb them down asap. It is recommended to stunlock them, but don't waste more than one DD on assisting the tanks with them.
Unstable Sha move from the outside of the room to Tsulong. They can be stunned and slowed, which helps a lot to prevent them from reaching their target: Exploding on Tsulong.
They cast Unstable Bolt on their way to Tsulong, dealing high damage to a target and damiging the Sha as well. It can and should be interrupted, but preventing every Unstable Bolt is impossible.

Tsulong tries to assist the players to fight the Sha with his ability:

Sun Breath which is a 60° frontal cone attack, dealing ~4,000,000 damage to the sha, restoring 25% maximum mana of every friendly target hit (in this phase Tsulong is a member of your raid group) and playing a buff on friendly targets hit. Bathed in Light increases the healing done by 500% for 6 seconds.

In this phase the damage dealer have to react quickly and kill all Unstable Sha asap, but should be in range of the healers, who stand in front of Tsulong. The Fright Spawn should not be any problem, but sometimes a fear is possible, stunlock them by the tanks or kill them with bomb damage.

The Transition
The most critical point in this fight is the transition from day to night.
Tsulong has to be faced away from your raid and the remaining Fright Spawn have to be killed, before they spread chaos by fearing someone. When this moment has passed, the rest of this encounter is just rinse and repeat.

In addition to the abilities above, he has an 8 minute enrage timer.

A video of how we dealt with the boss mechanics on our firstkill can be found here:
http://www.youtube.com/watch?v=WlIMipqy4To&list=PLHs1z6wAbUQDUXUDuDLvgKghYU61iSfVV&index=2&feature=plpp_video
Somehow I messed one wave of the Fright Spawn up.

Comment by lightclaw

LFR:

The point of the fight is to do 250M-ish combined healing and damage to the boss. Both are necessary to beat the enrage timer.

Night Phase -
Tanks swap after getting breathed on. They should not tank the boss facing the sunbeam (sad that I have to say that, but it wiped us three times.)

When you get to 5 stacks of the debuff, run through the sunbeam to clear it.

The reason the raid doesn't just stand in the sunbeam is because it gets used up over time and people will drop pools of fearing ooze for everyone else, making it difficult or impossible to clear your stacks.

Lots of raid damage, basically.

Day Phase - (the harder one, though with less damage)
Healers stand in front of the dragon. Getting breathed on gives 500% healing buff (for 6 seconds only, so make it count) and returns 25% of your mana. Heal the dragon. Dispel Terrorize from the boss immediately.

Tank big adds in front of the boss, as its breath does massive damage to the adds. AoE down the oozes that spawn when it dies. They explode and do big damage to the boss (bad in this phase.)

DPS kills Unstable Sha (and at a lower priority, the big adds) and must kill them before they reach the boss. They can be killed by slowing them and then doing minimal damage (200k or so) as they hurt themselves every time they cast. It's better to burn them down to reduce raid damage, but if you're the only one fighting them on one side, you do what you've got to do. AoE down the Fright Spawn that appear after the big adds die (very low health, but needs to be done.)

tl;dr version:
Night: Run through the beam to clear your stacks, tanks swap after each breath, stay alive. Don't just stand in the beam.

Day: Healers stand in front of the dragon and heal it. Tanks tank the big adds in front of the dragon. DPS kills Unstable Sha > Fright Spawn > Embodied Terror. Fright Spawn only appear after Embodied Terrors die; they need to die fast, but there are just a few and they can be AoE-ed down in seconds by only a few players.

Comment by iamleejn

I'm a bit sad to report that Tsulong will register as immune to Lay on Hands during the day phase. Oh the possibilits that could have been...

Comment by TGFseb15

Anyone else reminded of The Infinite Dragonflight by this boss? A golden cloud serpent that turns black and white when under the Sha's influence?

Speculation time: Sha (of Fear maybe) will somehow come into contact with Nozdormu, corrupting him, and as a result, driven by his fears, corruption will spread (Like Shek'zeer and the mantid) thus forming the Infinite Dragonflight.

Comment by lisakaps

The Day Phase woke up some memories from the Valithria Dreamwalker days.

Comment by Tuarceata

楚龍 (chǔlóng) most likely translates as Dragon of Suffering. The second character is pretty unambiguously dragon, while the first has a number of different meanings I was able to look up and probably many more I was not. Seems appropriate enough though!

Chulong is much closer to the actual pronunctiation as well so it's kind of a mystery why they chose to romanize it this way; what English speakers would pronounce as "tsu" is more like the zu or possibly cu sounds of Mandarin.

Comment by SolidSnack

Tsulong? That's what Shi said!

Comment by Chaix

Tsulong is most likely the fifth celestial in pandaria's version of the guardian beasts.

Huang Long (a golden dragon) supposedly reigned of the central area of the heavens; Tsulong (a "heavenly" golden cloud serpent) is found in what appears to be the same area as the vale of eternal blossoms (located in the center of pandaria).

Comment by attoffy09

I was looking at my boss unit frame and saw that Tsulong had Horn of Winter on him; and the buff gave him 10% extra damage. Can anyone confirm that this actually happens?

Comment by jeeyeop

Be careful, you might hit the berserk timer if you take tsu long -.-

Comment by steppman2

You should really watch what you do in this fight, just finished a LFR where he had almost every buff on him (given out by the raid after battle rezzing) and several times we had hunters MD adds to him. He seems to act as a 26th raid member in almost every way.

Comment by Slanor

Mistweavers are very OP for Day phase.

Comment by lisakaps

Upon the transition from Day to Night phase, it is worth to mention that mages can Spellsteal any remaining healing buffs from Tsulong.

Comment by edgeblade

So I've done this fight numerous times on LFR as a tank and always tank him right next to the sunbeam (facing away from raid). Is this correct or no? I've seen lots of other tanks put him all over the place. Since everyone stacks in the sun on LFR, (including melee in theory), then melee can't hit him unless he's next to the beam, right? People staying in the beam means less damage going out right? Yes I know it's just LFR and it doesn't really matter, but I'm curious.

Comment by Eindrachen

Our guild attempted this one without any form of Bloodlust (or variations thereof, like Heroism, Time Warp, or Ancient Hysteria). We got to 80% on the second Day phase, and then hit the enrage timer. We tried this three times before we conceded defeat and brought in a hunter with Core Hound... and got it in one go.

So. Word to the wise: this is a huge DPS/healing race, and not having some kind of haste spike to really hammer him down fast is a no-no, unless your entire raid is swinging ilvl 522+. We waited for the start of the second night phase, to make sure we were able to down all adds faster (less healer stress, fewer fears) and jump onto Tsulong with almost no pause. We discussed also doing it at the very start, but still won without doing so, so your mileage may vary.

Comment by Vankartae

My guild just downed Tsulong by using our warlock's Voidlord as a tank, thus freeing one of our regular tanks to switch into dps spec. We downed him first time using this tactic with about 30 seconds to go before he beserked.

Comment by maely

Possibly the best Holy Priest fight ever invented.

I had an LFR yesterday where I sustained 230k HPS over an abnormally long 11-minute fight duration. This LFR had the lowest DPS I've ever seen. In total, I healed Tsulong for 90.7 million HP, and in fact the six healers combined for more healing (day phases) than the nineteen DPS were able to output during the night phases. Just staggeringly low DPS numbers. (We finished the fight in a third day phase.)

Now, why is this such a favorable fight for Holy Priest? Blue chakra during the night phases, Divine Hymn, Divine Insight for extra PoMs, and so forth. My healing numbers are already probably over 100k at this point.

Day phase? Switch to yellow chakra, throw a renew on the boss, and start spamming heals and building stacks of From Darkness Comes Light. Ideally, you want two FDCLs each time a Sun Breath happens.

Then, and here's the real killer, toss a Guardian Spirit onto Tsulong for one of the Sun Breaths in which you have two stacks of FDCL. Your instant-cast heals will hit him for 3-4 million each. If you are lucky enough to proc additional FDCL stacks while you are consuming them during a GSpirit/Sun Breath, you can literally heal Tsulong for 20+ million HP in a matter of seconds.

Funny enough, my #1 heal for the attempt was actually the Echo of Light from Holy Priest mastery (just ahead of GHeal and FHeal both). Just another reason why this is a MUCH better Holy fight than DIsc fight; those Divine Aegis crit bubbles are basically wasted in day phases when you are bomb-healing Tsulong.

Tsulong

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