Thaddius

Thaddius
Race	Flesh titan (Undead)
Level	?? Boss
Location	Construct Quarter, Naxxramas
Status	Killable
Naxxramas Arachnid Quarter Anub'Rekhan Grand Widow Faerlina Maexxna (lore) (lore) (lore) Construct Quarter Patchwerk Grobbulus Gluth Thaddius (lore) (lore) (lore) (lore) Plague Quarter Noth the Plaguebringer Heigan the Unclean Loatheb (lore) (lore) (lore) Military Quarter Instructor Razuvious Gothik the Harvester The Four Horsemen (lore) (lore) (lore) The Four Horsemen Lady Blaumeux Thane Korth'azz Baron Rivendare Sir Zeliek (lore) (lore) (lore) (lore) Frostwyrm Lair Sapphiron Kel'Thuzad (lore) (lore) Other NPCs Mr. Bigglesworth (lore) Loot

Thaddius in World of Warcraft: Ashbringer.

"Thaddius, built from the flesh of women and children, it is said that their souls are fused together - eternally bound within that foul prison of flesh."

—Commander Eligor Dawnbringer

Thaddius is the fourth and final boss of the Construct Quarter in Naxxramas.

Your raid cleared out the last group of monsters, and the only thing left are the two gates at the very end of the room. All of a sudden, the mighty gates fly open. A vast laboratory filled with all kinds of strange machinery lies before you, electric discharges and lightning painting the walls with jagged shadows. Even though you know you should be trying to rally your raid you can't help but stare at the monstrosity in the center of the room. At the last second you snap out of it and barely escape a fierce blow by of one of the two gruesome wights that descended from platforms higher up in the room. As your raid forms up and mounts a first organized attack on the creatures, you can't help but wonder what other nightmares lie in wait in the cursed depths of Naxxramas.

You get the feeling you'll find out soon enough.

General information

• Adds: Feugen, Stalagg

25-man abilities

Feugen and Stalagg

The encounter begins with splitting the raid in two to engage Feugen and Stalagg. If they leave their platforms (or are even just pulled too close to the ramp up to their platforms) the entire raid will be hit by unhealable massive nature damage from the Tesla coils in the room. They have 2,100,000 HP each. If they are not killed within 5 seconds of each other they will resurrect each other with full health.

Feugen

Hits for about 4,500 on plate.

•   Static Field:

Does 3,500 Nature damage every 3 seconds to everyone within 60 yards.

•   Magnetic Pull:

Pulls Stalagg's tank to Feugen every 30 seconds and switches their threat.

Stalagg

Hits for about 6,000 on plate.

•   Power Surge:

Increases Stalagg's melee haste by 200% for 10 seconds.

•   Magnetic Pull:

Pulls Feugen's tank to Stalagg every 30 seconds and switches their threat.

Thaddius

After Feugen and Stalagg are slain the raid has 15 seconds to jump to Thaddius' platform before Thaddius becomes active. Thaddius has approximately 30,400,000 hit points.

•   Chain Lightning:

Hits 5 random players for 6938 to 8062 Nature damage. Cast every ~15 seconds.

•   Polarity Shift:

Charges the entire raid either negatively or positively. Roughly half will be each. When standing on people with the same charge a 10% damage buff is gained per person. When standing on people with the opposite charge they will deal 4,500 damage after 5 seconds to each other. (If you are standing near a group of the opposite charge you will receive 4,500 damage multiplied by the amount of people.)

This damage buff is needed to have any hope of killing Thaddius before his berserk. Cast every 30 seconds. THERE IS NO PATTERN TO WHICH RAID MEMBERS GET WHICH POLARITY!

•   Ball Lightning:

If no one is in melee range of Thaddius he will ball lightning his primary aggro target for 17500 to 22500 Nature damage.

• Berserker Enrage - After six minutes in combat Thaddius will Berserker enrage, increasing all damage done by 1,000%. 30 m / (6x60) = 83,333 (83.3k) Raid DPS needed = ~ 3,333 (3.3k) per player to beat this timer. Assuming 3-4 tanks and 6-7 healers leaves 15 dps means dps needs to do 5.5k dps each. Due to the damage buff can assume +100% to +120% dmg ie: equivalent to average of 2.5k to 2.8k per player on other fights.

10-man abilities

Feugen and Stalagg

The encounter begins with splitting the raid in two to engage Feugen and Stalagg. If they leave their platforms the entire raid will be hit by unhealable massive nature damage from the Tesla coils in the room. They have 838,300 HP each. If they are not killed within 5 seconds of each other they will resurrect each other with full health.

Feugen

Hits for about 3,000 on plate.

• Static Field - Does 2,500 Nature damage every 3 seconds to everyone within 60 yards.

• Magnetic Pull - Pulls Stalagg's tank to Feugen every 30 seconds and switches their threat.

Stalagg

Hits for about 4,500 on plate.

• Power Surge - Increases Stalagg's melee haste by 200% for 10 seconds.

• Magnetic Pull - Pulls Feugen's tank to Stalagg every 30 seconds and switches their threat.

Thaddius

After Feugen and Stalagg are slain the raid has 15 seconds to jump to Thaddius' platform before Thaddius becomes active. Thaddius has approximately 3,850,000 hit points.

• Chain Lightning - Hits 3 random players for 3600 to 4400 Nature damage. Cast every ~15 seconds.

• Polarity Shift - Charges the entire raid either negatively or positively. Roughly half will be each. When standing on people with the same charge a 10% damage buff is gained per person. When standing on people with the opposite charge they will deal 3,500 damage a second to each other each (7,000 total). Cast every 30 seconds.

• Ball Lightning - If no one is in melee range of Thaddius he will ball lightning his primary aggro target for 17500 to 22500 Nature damage.

• Berserker Enrage - After six minutes in combat Thaddius will Berserker enrage, increasing all damage done by 1,000%.

25-man strategy

You will want two tanks. Thaddius and his adds are tauntable. This encounter is significantly harder on 25-man mode as the enrage timer becomes a very restricting factor should you lose DPS early.

Phase one is very simple. Split the raid into two with half the tanks/healers/dps on either side. Keep the tanks alive and heal Feugen's/Stalagg's damage, keep the adds on their platforms and kill them at the same time. Tanks should be certain to keep Feugen and Stalagg in the middle/back of their platforms and within range of the Tesla coils - shifting too far towards the base of the ramp can pull them out of range of their Tesla coil, causing unhealable nature damage to the room and wiping the raid. The tanks may need to pull back and reposition slightly to keep Feugen and Stalagg in proper range of the Tesla coils after being thrown to the opposite platform. At around 5% it is necessary for both groups to check where the other is on damage. If either Stalagg or Feugen are killed while the other still has more than 5% to go, Feugen/Stalagg will be resurrected and the fight will begin again.

As soon as Feugen and Stalagg are down, the raid should jump to Thaddius' platform. Thaddius will become active a few seconds after the group reaches his platform, and should be tanked in the center of the platform where he is, but slightly forward so that there is room for the raid to see where to run on either side of him during the Polarity Shifts. Approximately 10 seconds after Thaddius becomes active, he will cast his first Polarity Shift on the raid. The raid will need to immediately stack up in two separate groups depending on their charge. The groups should be as close to each other as possible without shocking to allow melee DPS to engage Thaddius. Make sure you clearly state what side Negative is on and what side Positive is on. The tank should rotate around thaddius to match the group that shares his charge. Stacking the charges is critical, as each charge provides a +10% damage buff (up to 12 stacks) that will be necessary to defeat Thaddius before the enrage timer.

When Thaddius switches polarities again everyone that has to move should run a semi-circle around Thaddius as fast as possible. While there is only about 4 seconds between the polarity shift and the first shock, raid members should keep paying attention to which debuff they have. Note that not every Polarity Shift will change the charge on a raid member, so the raid members will need to monitor their debuffs each time Polarity Shift is cast.

Once the raid is back in position and stacked with others who have a similar charge, the fight continues as before. This is the entire fight 100% to 0%. You have six minutes to get through Thaddius' 30,400,000 HP. This enrage timer is quite strict and it is highly unlikely you will be able to beat it if you lose more than a few people, both because of the lost DPS and because fewer members of the raid alive means there are fewer people to stack to receive the same-charge buff (thus, even a healer death can become somewhat problematic).

It is also important to note that the jump onto Thaddius' platform from Feugen and Stalagg is difficult for some people. If one or more members of the raid fail to make the jump, they can run around to the front of the room, up to Feugen or Stalagg's platform, and try again. However, any raid members who arrive on Thaddius' platform after the fight begins must wait for a Polarity Shift before moving near the rest of the raid. Technically, having no charge (because you were out of range for the first Polarity Shift) will still trigger polarity charge damage because the charge is not the same as the other members of the raid (i.e., "no charge" is viewed as a different charge than + or -). A member arriving late to Thaddius' platform will thus need to wait, away from the rest of the group, until a Polarity Shift occurs and a charge is received, and the raid member can then join the rest of the raid on the appropriate side based on the charge received. After 3.0.8, Priests can cast [Levitate] on anyone. Anyone who has trouble jumping down should ask a priest to put levitate on them after Feugen and Stalagg are dead so all they have to do is run off the edge and float safely down to Thaddius's platform.

The Thaddius portion of the fight is typically very easy to heal, usually requiring no more than 3-4 healers for a 25-man raid. Any remaining healers should help dps to beat the enrage timer.

It is no longer possible to use two Bloodlusts/Heroisms during the Thaddius encounter, because the Sated/Exhaustion debuffs now last for 10 minutes, which is longer than the enrage timer.

Once Thaddius is down, be sure not to move in to loot as the charges will still be active. Have your group wait untill the charges are gone to collect their loot and proceed with their rolls.

Tips

Thaddius has a quite large hitbox, so it is possible for your ranged dps and melee to group up relatively close to each other. This positioning has three benefits; 1, you aren't close to the tank if the tank has an opposing charge and 2, ranged dps (specifically hunters) do not have to sacrifice dps to gain the buff and be able to move to the other side of the boss when their polarity buff changes and 3, you are close enough in range to recieve the buff to damage.

If anyone of your raid members have issues jumping to Thaddius' platform and are repeatedly missing and running back to try again, there is a small ledge along either wall that allows access to the platform. This takes a little more time to get to Thaddius' platform but is easier if someone has problems timing the jump to the platform, however it is more beneficial for the person to learn the jump and be able to make it on the first try.

If the need for a battle rez arises, the target of the rez should wait for Thaddius' polarity change and accept the rez immediately upon Thaddius' cast, then move to the appropriate group. Prematurely accepting the rez will lead to group damage and the target of the rez dying again, thus wasting a valuable resurrection.

10-man strategy

The 10-man strategy is completed exactly the same as the 25-man strategy. The tanks, healers, and DPS are split to kill Feugen and Stalagg simultaneously, and then Thaddius is engaged and the raid begins its rotations after the first polarity charge.

Notably, the pacing of dps on Feugen and Stalagg may have to be monitored more carefully in this version of the fight. For a 10-man group running 2 tanks, 3 healers, and 5 dps, splitting the raid will mean that one side has more dps players than the other. Consequently, dps on one side may need to slow down for a brief period of time, to ensure that Feugen and Stalagg are killed within 5 seconds of each other and do not resurrect.

Feugen and Stalagg can creep forwards on their platform at times, so it it wise for the tank to reposition their new target at the back of the platform after each tank switch.

The two polarity techniques for this encouter are the "Two-point" and "Four-point" - If you have done 40man naxx at level 60, you are likely to have learned the 4 point, but I would recommend the two point here.

It basically involves assigning a direction to each polarity (usualy Minus = left and Plus = right). As you look in the room before you attack the two mini bosses you will see thaddius, to the left of him (as you are facing) and to the right are what is refered too by left and right.

You only need to get this bit right once!

When you pull Thaddius stack up on the tank (use raid markings on the tank so people know where to go - but remove it before the polarity shift) then when he does it a first time:

Go RIGHT if you have a PLUS LEFT if you have a MINUS

From then on the fight becomes simple. Stack on top of each other in melee range - this assures that everyone gets the buff and due to Thaddius's huge hitbox, you can be well out of range of the other group members with different charges.

When Thaddius changes polarity again, you must look carefully - if your Polarity has CHANGED, run around the boss in a counter clockwise direction and stack on the other side.

If it didn't change STAY WHERE YOU ARE!

Deadly Boss Mods (DBM) is helpful. Polarity shifts are yelled at you. DBM also has a 4 point option setting.

Continue this for 4-5 mins and you will either kill him or kill yourself depending on how well your group has mastered the movement technique.

This technique requires fast reactions and good awareness of de-buffs. If you are part of the same group that downed Grobbulus, you are likely to be able to do this encounter.

In 10 man if one person messes up - this does not mean a wipe, if you are unsure where to go, move out of melee range and stand as far away from the boss and both groups as possible, until u understand the mechanic.

Things that can go wrong

Your ranged dps do not stack in melee range, and cannot run through the boss in time.

Someone in the group gets the polarity wrong and stands at the wrong side (usually wiping half the raid - this can be made up for if Thaddius is almost dead - <10% - assuming you have at least one tank and healer still alive)

People who miss the platform on the 1st try enter into the fight without having a polarity on them. There was some debate as to whether mage slow fall works for the jump, it does work, but is not neccessary.

Someone in the group suggests a "Spread out" technique - It probably will not work as the Dps needs the stacking buff.

Tips

Use Vent/Ingame voice chat.

Thaddius only needs one tank, so have your others Dps.

When the boss dies, do not move you still have your polarities and can still kill the raid, wait for it to go. Do not ressurect any players for the same reason, wait till the de-buff has faded.

Tactical graphics

• 

  Animated Tactic.

• 

  Created for 10 man, but should still apply for 25 man.

• 

  (10/25man)How to done The Achievement,EZ-Mode

• 

  Basic rotation and DPS placement for Thaddius.

Quotes

• You are too late... I... must... OBEY!
• KILL!
• EAT YOUR BONES!
• BREAK YOU!
• Now YOU feel pain!
• You die now!
• Thank... you...

The following quotes (echoing screams would probably be more accurate) are heard echoing throughout Naxxramas in addition to during the fight with Thaddius, and will stop after Thaddius dies. The screams sound like those of a woman or child:

• Pleeease!
• Stop, please stop...
• Help me! Save me!
• Please, nooo!

Loot

10 man

Leggings of the Lost Conqueror Binds when picked up Classes: Paladin, Warlock, Priest Requires Level 30 Sell Price: 5 Leggings of the Lost Protector Binds when picked up Classes: Shaman, Hunter, Warrior Requires Level 30 Sell Price: 5 Leggings of the Lost Vanquisher Binds when picked up Classes: Druid, Rogue, Death Knight, Mage Requires Level 30 Sell Price: 5 Arc-Scorched Helmet Item Level 35Disenchants into: Not disenchantable Binds when picked up Mail Head 8 Armor +3 Agility or Intellect +5 Stamina +4 Critical Strike +2 Haste   Meta Socket Prismatic Socket Socket Bonus: +4 Critical Strike   Durability 100 / 100 Requires Level 30 Sell Price: 9 81 36 Blackened Legplates of Feugen Item Level 35Disenchants into: Not disenchantable Binds when picked up Plate Legs 14 Armor +4 Strength or Intellect +5 Stamina +4 Haste +4 Versatility Durability 120 / 120 Requires Level 30 Sell Price: 10 47 84 Cowl of Sheet Lightning Item Level 35Disenchants into: Not disenchantable Binds when picked up Cloth Head 3 Armor +3 Intellect +5 Stamina +3 Haste +2 Versatility   Meta Socket Prismatic Socket Socket Bonus: +5 Spell Power   Durability 100 / 100 Requires Level 30 Sell Price: 9 85 16 Repelling Charge Item Level 35Disenchants into: Not disenchantable Binds when picked up Unique Trinket +5 Dodge Use: Increases maximum health by 1063 for 15 sec. (3 Min Cooldown) Requires Level 30 Sell Price: 10 73 43 Torment of the Banished Item Level 35Disenchants into: Not disenchantable Binds when picked up Sword One-Hand Speed 2.60 4 – 7 Damage (2.1 damage per second) +1 Agility +4 Stamina +2 Critical Strike +2 Haste Durability 110 / 110 Requires Level 30 Sell Price: 20 47 54

25 man

Legplates of the Lost Conqueror Binds when picked up Classes: Paladin, Warlock, Priest Requires Level 30 Sell Price: 5 Legplates of the Lost Protector Binds when picked up Classes: Shaman, Hunter, Warrior Requires Level 30 Sell Price: 5 Legplates of the Lost Vanquisher Binds when picked up Classes: Druid, Rogue, Death Knight, Mage Requires Level 30 Sell Price: 5 Benefactor's Gauntlets Item Level 35Disenchants into: Not disenchantable Binds when equipped Mail Hands 6 Armor +3 Agility or Intellect +4 Stamina +2 Critical Strike +3 Haste Durability 55 / 55 Requires Level 30 Sell Price: 6 38 27 Cincture of Polarity Item Level 35Disenchants into: Not disenchantable Binds when picked up Cloth Waist 2 Armor +3 Intellect +4 Stamina +2 Critical Strike +3 Haste Durability 55 / 55 Requires Level 30 Sell Price: 7 46 19 Cover of Silence Item Level 35Disenchants into: Not disenchantable Binds when picked up Leather Head 5 Armor +4 Agility or Intellect +6 Stamina +4 Critical Strike +3 Haste Durability 100 / 100 Requires Level 30 Sell Price: 10 90 74 Faceguard of the Succumbed Item Level 35Disenchants into: Not disenchantable Binds when picked up Plate Head 12 Armor +3 Strength or Intellect +5 Stamina +2 Critical Strike +3 Haste   Meta Socket Prismatic Socket Socket Bonus: +4 Critical Strike   Durability 100 / 100 Requires Level 30 Sell Price: 10 98 81 Headpiece of Fungal Bloom Item Level 35Disenchants into: Not disenchantable Binds when picked up Leather Head 5 Armor +3 Agility or Intellect +6 Stamina +2 Haste +3 Versatility   Meta Socket Prismatic Socket Socket Bonus: +5 Spell Power   Durability 100 / 100 Requires Level 30 Sell Price: 8 3 53 Pauldrons of the Abandoned Item Level 35Disenchants into: Not disenchantable Binds when picked up Mail Shoulder 7 Armor +3 Agility or Intellect +3 Stamina +4 Critical Strike +2 Haste Durability 100 / 100 Requires Level 30 Sell Price: 11 2 85 Riveted Abomination Leggings Item Level 35Disenchants into: Not disenchantable Binds when picked up Plate Legs 14 Armor +4 Strength or Intellect +4 Stamina +3 Critical Strike +6 Haste Durability 120 / 120 Requires Level 30 Sell Price: 14 7 85 Sabatons of Endurance Item Level 35Disenchants into: Not disenchantable Binds when picked up Plate Feet 10 Armor +2 Strength or Intellect +4 Stamina +4 Dodge +2 Critical Strike Durability 80 / 80 Requires Level 30 Sell Price: 10 94 78 Spire of Sunset Item Level 35Disenchants into: Not disenchantable Binds when picked up Staff Two-Hand Speed 3.60 4 – 6 Damage (1.4 damage per second) +17 Intellect +6 Stamina +6 Haste +3 Versatility Durability 120 / 120 Requires Level 30 Sell Price: 21 2 82 Wraps of the Persecuted Item Level 35Disenchants into: Not disenchantable Binds when picked up Cloth Hands 2 Armor +3 Intellect +4 Stamina +3 Critical Strike +3 Versatility Durability 55 / 55 Requires Level 30 Sell Price: 7 51 54

Videos

Hi-res video and discussion

[How to] Thaddius 10 & 25.
[| More guides here]

How to Heal Thaddius.

External links

• Wowhead
• WoWDB

[1] 

World of Strats 10/25 man versions

• Anikki's illustrated tactic
• Thaddius Kill Video - Warlock POV released by War Front, Frostmane US.