Thaddius (boss)


 * ''For the minion card of the same name, see Thaddius.

Thaddius is a boss found in the Curse of Naxxramas adventure. He is the fourth and final boss of the adventure's fourth wing, the Construct Quarter.

Decks
The below classes are listed purely for reference, and have no effect on the boss' use of the cards during the battle. Normal and Heroic

General tips
Use minions with auras that increase either Attack or both Attack and Health. His hero power will swap the current Attack and Health of all minions, making the bonuses permanent. The auras will then be reapplied, providing additional benefits. This process will repeat every turn.

0-attack minions will become 0-health, and therefore die, when the boss' hero power activates. For this reason, Nerubian Egg is an excellent card for this fight, essentially giving the player a 4/4 for 2 mana.

Heroic
Thaddius summons Stalagg and Feugen for free on his first turn. These boss minions do not possess Deathrattles and will not summon a Thaddius minion upon death. However, these minions' deaths will still count to trigger the player's Stalagg and Feugen's Deathrattles, allowing for a Thaddius minion to be summoned as early as turn 5.

Warlock is a good class for this fight, because it has several cheap cards, like Corruption, Corrupting Mist and Soulfire, that can deal with the initial Stalagg and Feugen before they deal too much damage.

Decklists

 * The Construct Quarter Heroic Boss Deck Guides
 * Decks for defeating Heroic Thaddius

Wing completion
As the final boss of the Construct Quarter, defeating Thaddius also unlocks the following rewards:

Dialogue
Before match
 * Kel'Thuzad
 * ''It's alive!! But you won't be, for long.

Introduction
 * Thaddius
 * ''I must obey!

Emote Response
 * Thaddius
 * ''Kill!

Hero Power
 * Thaddius
 * ''You die now!

Death
 * Thaddius
 * ''Thank you...
 * Kel'Thuzad
 * ''Interloper! This is the final straw!

Lore


is a raid boss in the raid.

In Curse of Naxxramas

 * The final hulking horror that stands within the Construct Quarter is . Pieced together from the flesh of the innocent, this massive abomination dwells in one of ’ experimental laboratories, flanked by two huge wights— and . Powerful bolts of electricity arc through the laboratory, supercharging Thaddius and his wight minions.

In World of Warcraft
In order to confront Thaddius in the Naxxramas raid, players had to first kill Feugen and Stalagg. If they were not killed within 5 seconds of each other they would resurrect each other with full health, forcing raids to down them almost simultaneously.


 * ", 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."

Patch changes

 * Added.