Hearthstone Wiki

Book of Mercenaries is a single-player game mode first released on April 6, 2021 with new chapters releasing until March 17, 2022.

It uses a classic linear adventure format with an appearance similar to Dungeon Run screen. Like Book of Heroes, Book of Mercenaries is about telling the journeys and stories, but the main characters are mercenaries, who were first introduced in Forged in the Barrens as legendary cards and unique to Hearthstone.

Like Book of Heroes, Book of Mercenaries featured a chapter for each of the ten classes that existed before Patch 25.0.0.158725, for a total of 80 missions or bosses. It is completely free to play and available to everyone. Additionally, completing a class's story rewards the player a corresponding class pack.

Warrior was the first class and Rokara's story was the first story to be introduced. New missions were released over the course of the Year of the Gryphon.

Structure[]

Book of Mercenaries menu

Book of Mercenaries' Choose Hero menu

For general information on adventures, see Adventure.

  • Book of Mercenaries comprises 80 boss encounters in total.
    • The encounters are split into 10 class' stories, making each consist of 8 encounters.
  • The player is given pre-made deck for each boss encounter, controls a special hero with their corresponding Hero Power, and gets special interactions between their hero and boss.
  • During a class' story, the player must encounter the bosses in order and cannot choose the specific ones.
    • However, if the player loses an encounter, the player can try again without being reset to the first encounter, unlike Dungeon Run or similar modes.
      • The player can press the "Retire" button, which is under the player's hero portrait, to be reset willingly.

Boss encounters and characters[]

Below is the list of boss encounters and player characters for Book of Mercenaries.


Release schedule[]

Hero Date of release
Rokara April 6th, 2021
Xyrella June 3rd, 2021
Guff June 15th, 2021
Kurtrus July 13th, 2021
Tamsin August 31st, 2021
Cariel November 9th, 2021
Scabbs November 16th, 2021
Tavish February 1st, 2022
Bru'kan February 14th, 2022
Dawngrasp March 17th, 2022

Rewards[]

Book of Mercenaries Reward

A hero's Book of Mercenaries has been completed

Upon completing a class' story, the player can claim a corresponding class pack. As soon as the player defeats the final boss of a story, a following note, titled <Hero name>'s Book of Mercenaries, appears:

<Hero name>'s Book of Mercenaries has been completed. Celebrate with a new card pack!

Boss cards[]

Main article: Book of Mercenaries boss cards

In addition to the collectible cards from card sets, Book of Mercenaries brings many unique cards, Playable Heroes, Hero Powers and many more available only during the boss encounters.

Patch changes[]

External links[]

  • Blizzard Entertainment (2021-04-06). Meet the Mercenaries. PlayHearthstone. Retrieved on 2021-04-08.