High Justice Grimstone / Dark Iron Arena Boss Guide

High Justice Grimstone Boss Guide

Welcome to our High Justice Grimstone Blackrock Mountain Boss Guide. Below you can find more information on the Grimstone Fight.

Table of Contents

Boss Overview

High Justice Grimstone is the second boss in the Blackrock Depths wing of the Blackrock Mountain adventure.

  • His deck is filled to the top with Legendary minions - no spells.

Heroic Difficulty Strategy

If you're playing on normal difficulty, the same strategy can be applied, it's just an easier fight!

  • On Grimstone's first turn, he will have 4 mana, or 5 with the Coin.
  • Control his minions through whatever means necessary.
  • Freeze, Mind Control, Mind Control Tech, Sap, Shadow Word: Pain are great examples of cards which can be used to control Grimstone's field.
  • High-hitting AOE such as Flamestrike can be useful in a pinch.

Boss Card List

These are the cards that High Justice Grimstone uses in his decks.

Winning Deck Lists

Having trouble taking down High Justice Grimstone? These decks have been proven to work against him on Heroic Difficulty.


Upon defeating High Justice Grimstone for the first time, you will receive two copies of Gang Up, a Rogue spell.

Once you have earned the regular version of Gang Up, you can craft the golden version for 400 Arcane Dust.

Blackrock Mountain Bosses

We've got boss guides for all the other Blackrock Mountain bosses. Click on their portrait below to learn more about the fight!



Posts Quoted:
Clear All Quotes