WoW MoP Classic Phase 3 The Thunder King Thunderforging System Explained
Posted: Nov 25, 2025 Views: 27
Amidst player anticipation and the development team's continuous teasers, Mists of Pandaria Classic Phase 3, titled The Thunder King, is finally confirmed to launch on December 9th at 3:00 pm PST.
As always, the release of a new phase means more new content to explore. Phase 3 will bring a new raid, 2 zones, 2 world bosses, and 3 factions, with Throne of Thunder raid undoubtedly being the highlight.
Besides the core boss battles, this raid also features numerous exclusive mechanics designed to enhance its playability, such as Thunderforging system.
This system first appeared in Mists of Pandaria and was later used in other WoW expansions, but its actual effectiveness was not very appealing.
Therefore, MoP Classic has modified it, presenting it with a completely new look in Phase 3. Below, we'll introduce the specific details.

Thunderforging System Basic Mechanics
Throne of Thunder raid takes place in Isle of Thunder, featuring 13 bosses. During the raid, each boss you defeat may drop items that trigger Thunderforging buff, instantly leveling the item's level up by 6.
The probability of this effect triggering is not fixed, but as the raid difficulty increases, the number of items dropped by bosses also increases, so theoretically, the higher the difficulty level, the greater the probability of triggering it.
Generally, if your team obtains one or more Thunderforged items before the raid ends, it's best to focus them on your strongest member, maximizing that member's abilities to increase the win rate against subsequent bosses.
Thunderforging System Changes In MoP Classic Phase 3
Due to the extremely low trigger rate, it was previously difficult to obtain truly top-tier gear using Thunderforging system during raids, leading many players to believe that the system did not provide any useful assistance in completing raids.
However, aside from the probability aspect, Thunderforging's design itself is quite appealing. Therefore, in the upcoming WoW MoP Classic Phase 3, the developers have chosen to add changes to optimize and retain it.
Based on this, the new Thunderforging system operates as follows:
- In Normal and Heroic difficulties, Thunderforged items that drop directly are 6 levels higher than normal items.
- During Throne of Thunder raid, Thunderforged normal and heroic items cannot be upgraded.
- During Throne of Thunder raid, normal items that drop in Normal and Heroic difficulties can be upgraded a maximum of twice by consuming Justice Points, each time increasing their level by 3.
Furthermore, the new Phase 3 introduces Mogu Rune of Fate. This item allows all players in the party who possess it to have a second chance to choose additional rewards from a specific boss's loot list after the boss fight ends.
After using this rune, the system will randomly generate a number for you. If the number is higher than a certain threshold, you will receive random specialization gear; if it is lower, you will only receive WoW MoP Classic gold.
While there are limitations to rune usage, and there's no guarantee that the item you get next will trigger Thunderforged, the higher the reward, the greater the chance.
It's worth noting that if you choose from the reward list for the heroic difficulty boss Ra-den, you will definitely receive a Thunderforged item of level 541 as long as your roll is high enough.
In fact, all items dropped by this boss are Thunderforged, but each team only has 30 chances to challenge it per week. If you fail to defeat Ra-den within 30 attempts, you must wait until the next raid reset to challenge him again.
Thunderforging System's Item Upgrade Mechanism
During the initial weeks after Phase 3 launch, outside of Throne of Thunder raids, upgrading these items will require 250 Valor Points each time, after which it will consume approximately 1000 Justice Points.
This mechanism is likely designed to balance the game environment, preventing players from gaining too much progress in the early stages of Phase 3 and becoming unplayable later on, as Valor Point acquisition has a weekly cap.
Furthermore, Thunderforged items dropped in the first few weeks will allow you to enjoy their max item level without upgrading, meaning you can safely use Valor Points to upgrade regular gear or for other purposes.
Since Mists of Pandaria Classic Phase 3 hasn't started yet, you can now fully utilize Phase 2 mechanics to accumulate resources in advance, such as consuming Valor Points to exchange for Commendation of Justice items.
These items will grant you more Phase 2 Justice Points, which will be converted into Valor Points once Phase 3 begins. However, if the number of Valor Points to be converted exceeds 4000, the excess will be converted into gold.
This allows you to focus on developing new content during the first few weeks of Phase 3 without having to focus on earning Valor Points.
It's important to note that two types of gear cannot be upgraded in this system:
- Gear belonging to Tier pieces with a level cap of 535.
- Gear sold by Shado-Pan Assault vendor with a level cap of 522.
This concludes our detailed explanation of MoP Classic Thunderforging system. Further details and changes will be available upon the official release of Phase 3. Let's look forward to it!
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