Affixes: Explained

[Kain]

Each mythic keystone above level 1 will have at least one random, unique effect present in the instance. These are called affixes. In addition to the health and damage increase, there are also an increasing number of extra mechanics you have to watch out for. Here's what each of them do (in approximate order of appearance per difficulty):

Keep in mind that some spell tooltips may not necessarily provide all/correct/accurate information, and serve only as an indicator for the affixes.


 

For the full immersion of the mythic system, we recommend turning up your graphics settings for a better visual experience. Alongside automatic Quest Objective Trackers (for the timer and progress counters, found in Interface->Game->Objectives), Spell Alerts (some client sided visual effects, found in Interface->Game->Combat), here are some settings that can also aid you in awareness (found under Options->Graphics) are: Multisampling, Projected Textures, Texture Filtering, Particle Density.

 

You can obtain a physical Mythic Keystone from Aggra that can remotely provide all information about your current keystone.
You can also inquire further information about each affix in-game.

 

Affixes

Fortified
Non-boss enemies have 20% more health and deal +30% increased damage.

 

Tyrannical
Bosses have 40% more health. Bosses and their minions deal +15% increased damage.

 

Teeming
Some mobs are double-spawned in trash packs at random.

 

Raging
Non-boss enemies enrage at 30% health, dealing double damage.

 

Bolstering
Killing an NPC buffs all nearby hostile NPC's maximum health and damage by 20%. This effect stacks.

 

Sanguine
When slain, non-boss enemies leave behind a lingering pool of ichor that heals their allies and damages players.

 

Volcanic
While in combat, enemies periodically cause gouts of flame to spawn and erupt beneath the feet of players. Being hit by this effect causes players to take heavy damage, get their cast interrupted, and be slightly knocked back.

 

Necrotic
All enemies' melee attacks apply a stacking DoT that also reduces healing received.

 

Explosive
While in combat, enemies periodically summon Explosive Orbs that will detonate for a lot of damage if not destroyed. These orbs are immune to everything other than damage.

 

 
Bursting
Upon dying, NPCs leave behind a stacking DoT effect on players within close proximity.

 

Quaking
Periodically, all players emit a shockwave, inflicting damage and interrupting nearby allies. The damage is further multiplied, if other players are caught within the indicated radius.

 

 
Skittish
Tank players have their threat generation significantly reduced.

 

 

Overflowing
All healing done to players above their maximum health is converted into a healing absorption effect instead.

 

Relentless
Non-boss enemies are periodically granted temporary immunity to Loss of Control effects.

 

 
Grievous
Players below 90% health are constantly taking damage from a rapidly increasing DoT effect until healed above threshold.

 

 

 

 

Huge thanks to Try, aka Caecus for providing most of the information and screenshots!