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Knights of the Frozen Throne logo.png The subject of this article is part of the
Knights of the Frozen Throne expansion.

Professor Putricide
Set:Knights of the Frozen ThroneKnights of the Frozen Throne
Health:30 Health
Health:15 Armor.png
Artist:Mike Sass
Flavor text

The professor's experiments are running amok!

External links

Data pageHearthpwn

For the card of the same name, see Professor Putricide.
For the Battlegrounds hero, see Professor Putricide (Battlegrounds).

Professor Putricide is a boss found in the Knights of the Frozen Throne mission. He is the second boss of the mission's Upper Reaches wing and fifth boss of the mission overall.

The encounter is in three phases, just like the World of Warcraft boss encounter. Each phase will have a different Hero Power

Starts at 30HP with 15 armor. Every time you destroy that 15 armour he "evolves" and goes to the next phase.

1st Phase: Passive hero power allows all Secrets to cost 0 mana...and he will play a lot of them.
2nd Phase: Passive hero power allows all Weapons to cost 1 mana. He will also summon Festergut.
3rd Phase: Passive hero power makes all Cards cost 5 mana. He will also summon Rotface.

Hero Portraits[]

Professor Putricide, phase 2Professor Putricide, phase 3

Hero Powers[]

Mad Science(63143).png
Madder Science(63144).png
Maddest Science(63147).png

Special Cards[]

Growing Ooze(42872).png


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

Class Card Quantity
Boss Growing Ooze 6
Tentacles 2
Hunter Cat Trick 1
Dart Trap 1
Freezing Trap 1
Venomstrike Trap 1
Eaglehorn Bow 1
Mage Arcane Intellect 3
Counterspell 1
Duplicate 1
Frozen Clone 1
Vaporize 1
Paladin Avenge 1
Getaway Kodo 1
Sacred Trial 1
Neutral Mad Scientist 2
Abomination 2
Sludge Belcher 2
The Boogeymonster 1


Use these cards:

Class Card Quantity
Phase one Secretkeeper 2
Kezan Mystic 2
Eater of Secrets 2
Brann Bronzebeard 1
Avian Watcher 2
Phase Two Harrison Jones 1
Gluttonous Ooze 1
Phase Three Alexstrasza 1

Phase one[]

  • Putricide's deck has 11 secrets, keep track of them.
  • Open with Secretkeeper; do not attack or trigger any of the secrets until turn 4.
  • On turn 4 eat all the secrets with Eater of Secrets, then attack.
  • If he has 1 or 2 secrets, take them with Kezan Mystic; you can also pair it with Brann Bronzebeard.
  • Playing Cloaked Huntress during this time is counter-intuitive due to the card's effect being completely unnecessary because of Putricide's Hero Power.
  • The phase ends once he runs out of armor; at this moment Festergut will be summoned on his side on the board. Make sure that you can kill it before you take all Putricide's armor.

Phase two[]

  • Putricide regains an additional 15 armor.
  • He only has 3 weapons in his deck; get rid of them with cards like Harrison Jones, Gluttonous Ooze or Acidic Swamp Ooze
  • You can also add one or two high-cost weapons to your deck to equip them during this phase.
  • Once he runs out of armor this time, Rotface will be summoned; you need to remove it with one hit or better yet steal it.

Phase three[]

  • Time to bring out the big guns.
  • The only three cards that costs more than 5 in his deck are The Boogeymonster and two copies of weapon Tentacles; the remaining cards cost less than 5, so he won't really make much use of his last hero power.
  • Since we've been dealing with his armor so far, Alexstrasza is a good card to start with.
  • Remember to bring some powerful board clears with you.

Boss completion[]

As the second boss of Upper Reaches, defeating Professor Putricide unlocks the third and final boss, Sindragosa.


Before match

The Lich King
Professor Putricide is my card draw engine. But all he draws is "Gas". I really dislike him.


Professor Putricide
Good news, everyone! I've fixed the poison slime pipes.

Emote Response

Professor Putricide
That's not very nice.

Growing Ooze

Professor Putricide
Great news, everyone! The slime is flowing again!

Equipping a weapon

Professor Putricide
I didn't know I even HAD one of these.
Oh, my.
So dangerous. So delightful!
Where did that come from?
Yes, that'll do.

Phase 2

Professor Putricide
Tentacles! Oh my – they do have a mind of their own don’t they?

Festergut dies

Professor Putricide
Oh Festergut, you were always my favorite... next to Rotface.

Phase 3

Professor Putricide
Hmmm, interesting.

Rotface dies

Professor Putricide
Not Rotface! What did he ever do to you!?

Player's cards

Professor Putricide
Oooh, ooze!
Mad Scientist
Have you been poaching my staff?
Cloaked Huntress during Phase 1
Well, that seems superfluous.
Eater of Secrets
No! My secrets! My life's work!
Professor Putricide
Professor Putricide
Wah? There's that guy that I am!
Professor Putricide
Good news... me!
Professor Putricide
That's not good news at all you be-tentacled doppelganger!
Never trust an ethereal. You can't see their faces!
Power Word: Tentacles
Can I get one of those?
Tentacles for Arms
That is a stylish choice of weapon.
Mysterious Challenger
Nobody's more mysterious than me!
Aviana during Phase 3
Your science is better than my science!
Professor Putricide
Rotface! How could you!?
Rotface have NEEDS.
The Lich King
Professor Putricide
Oh my, I didn't expect to see you here.
The Lich King
I'm a very hands-on manager.
Becoming Jaraxxus or a death knight
Waaahh? Did you just change your hair?


Professor Putricide
Bad news, everyone...
The Lich King
Putricide, that was pathetic. You belong in a Hunter deck, not my citadel.


The Lich King
Putricide, your deck is disgusting. I've underestimated you.


Wowpedia icon.pngThis section uses content from Wowpedia.
"Good news, everyone! I think I've perfected a plague that will destroy all life on Azeroth!"
Professor Putricide is the Scourge genius behind the development of all forms of blight, plague, ooze, scourge, and death delivery. He is the final boss in the Plagueworks section of Icecrown Citadel, the first Icecrown wing to be unlocked. In order to reach his laboratory, players must first defeat Festergut and Rotface.


Professor Putricide, full art

Patch changes[]