Last Halloween, the Lunatic Court followed through on an ill-conceived plot to free Mad King Thorn from his realm. Seals were broken, bizarre acts were performed, terrible jokes were deciphered, and it seemed at the time that all the fuss had been for nothing.
But since then, instability has begun to seep into the world, gathering in the places where the influence of the Mists is felt most strongly. The instability has resulted in fluctuations – changes that alter the experience of playing in our competitive venues. Fluctuations seem to come and go, bringing new effects with them every month.
The introduction of Flux is a compelling tool to help us keep our competitive formats dynamic, while allowing us to further balance the game. Because slight shifts in the meta are expected from Flux to Flux, it allows us to better target overly problematic builds. If powerful builds can thrive in environments that are not suited to them, we can review the skills to bring them more into line. We want to encourage gameplay where the team that wins does so because they've played more skillfully.
The Flux system is the precursor to several improvements that will be coming in a PvP-specific update. We'll be taking a look at improving some titles, the incentives to play, the rewards for various formats, and more. Look forward to it!
Flux is an environment effect present in Player versus Player areas that changes on the first of every month (Pacific Standard Time [UTC−8]). Flux affects player characters and does not affect NPCs. Although it does affect heroes in the Isle of the Nameless (PvP) and Training Arena, and the "Zaishen" party members and "Enemy" foes (excluding the Priests) in Training Arena. The Flux rotation has been the same as the previous year since July 2012.
 Effects that have been implemented
|Flux||Month in effect|
|Parting Gift (and Gift of Battle)||December 2013|
|All In||November 2013|
|Minion Apocalypse||October 2013|
|Like a Boss (and The Boss)||September 2013|
|Jack of All Trades||August 2013|
|Chain Combo||July 2013|
|Xinrae's Revenge||June 2013|
|Meek Shall Inherit||May 2013|
|There Can Be Only One||April 2013|
|Hidden Talent||March 2013|
|Amateur Hour||February 2013|
|Odran's Razor||January 2013|
|Parting Gift (and Gift of Battle)||December 2012|
|All In||November 2012|
|Minion Apocalypse||October 2012|
|Like a Boss (and The Boss)||September 2012|
|Jack of All Trades||August 2012|
|Chain Combo||July 2012|
|Bounty Hunter||June 2012|
|Inverse Ninja Law||May 2012|
|Hive Mind||April 2012|
|Meek Shall Inherit||March 2012|
|Keep Yourself Alive||February 2012|
|Xinrae's Revenge||January 2012|
|Courier's Haste||December 2011|
|Hidden Talent||November 2011|
|Minion Apocalypse||October 2011|
|Massive Damage||September 2011|
|Quickening Terrain||August 2011|
|There Can Be Only One||July 2011|
|Unyielding Spirit||June 2011|
|Lone Wolf||May 2011|
- Flux was introduced in the April 28, 2011 update and stopped affecting the Ascalon Academy battles on October 6, 2011.
- Prior to the May 16, 2013 update, the Flux changed on the first of every month UTC instead of PDT/PST.
- There have been occasions when there has been no Flux in effect:
- Blood Pact and Minion Explosion are unimplemented Flux effects that can be found in the Gw.dat.
- For the first two days of May 2012, the Flux's name and description displayed as "..." and did not "behave as intended". The reversed effects of Inverse Ninja Law was observed beginning on May 1, until the May 3 update introduced Inverse Ninja Law.
- Minion Apocalypse is the only Flux to affect a Player versus Environment area.
- Like a Boss and Parting Gift are the only Flux effects with an accompanying effect (The Boss and Gift of Battle, respectively). Parting Gift is also the only Flux with an accompanying bundle.