WorldOnFireModU15 WorldOnFire
World On Fire
Blast nearby foes with a burst of fire, and follow that up with a barrage of fireballs against any enemy who dares approach. Over time, these fireballs burn hotter as they consume more energy.

Initial Energy Drain: 3 s-1
Overheated Energy Drain: 6 s-1

Strength:250 / 300 / 350 / 400 (initial damage)
500 / 600 / 700 / 800 (overheated damage)
10% / 20% / 25% / 35% (status chance)
Range:7 / 10 / 12 / 15 m (initial radius)
3.5 / 5 / 6 / 7.5 m (overheated radius)
Misc:5 (number of targets)
6 s (overheat delay)
9.5 s (overheat buildup)

  • Ember ignites the environment, slamming her hand into the ground and dealing 250 / 300 / 350 / 400 Heat b Heat damage initially to a maximum of 5 enemies within an initial radius of 7 / 10 / 12 / 15 meters. Immediately after, Ember sustains wisps of burning flames in orbit around her, creating an aura that triggers a series of fiery explosions; each explosion inflicts 250 / 300 / 350 / 400 Heat b Heat damage to the same maximum number of enemies within a similar range. All instances of damage have a 10% / 20% / 25% / 35% status chance, while explosions occur at a rate of roughly 2 to 4.5 per second.
    • Damage and status chance are affected by Ability Strength.
    • Heat b Heat damage is effective against Cloned Flesh, Infested, and Infested Flesh, but less effective against Proto Shields.
    • Heat b Heat status effect deals 50% of World on Fire's base damage per tick over 7 ticks in 6 seconds. Ignited enemies will also panic and flail around for a brief period.
    • Initial radius is affected by Ability Range.
    • Enemies are prioritized upon World on Fire's activation. Higher priority will be given to enemies that pose the most immediate threat to Ember, such as enemies within close range.
    • Explosions will occur directly on enemies as long as they are within the initial radius.
    • With the exception of the initial explosions on activation, multiple explosions do not occur simultaneously.
  • After World on Fire remains active for 6 seconds, Ember's flames begin to overheat over the course of 9.5 seconds. As the flames overheat, damage per explosion gradually increases by 100% while the aura radius shrinks by 50% and energy drain per second increases by 100%.
    • Overheat percentage is displayed on the ability icon from 0% to 100%.
    • Overheat delay, buildup time, damage bonus, radius reduction, and energy drain rate penalty are not affected by mods.

Main article: Firequake

Firequake is a Warframe Augment Mod for Ember that gives World On Fire a chance to knock down enemies caught in the flames.

Rank Knockdown Chance Cost
0 50% 6
1 65% 7
2 80% 8
3 100% 9

Tips & Tricks
  • With the Firequake Augment equipped, World On Fire becomes a viable crowd-control ability as it has a 100% chance of knocking down enemies hit by its fire.
  • Ember's Passive 'Ignition' is especially effective when used with World On Fire as the extra Ability Strength will remain in effect after the initial Burning proc expires as long as that instance of channeling the ability remains active.


Maximization is a form of specialization: mods may be blended to result in values that vary between the top-end limits listed here. Click any maximized link to learn how to build it.

  • Maximized Ability Duration reduces channeling cost to 0.98 energy per second.
    • Reduces range to 5.1 meters.
  • Maximized Ability Efficiency reduces activation cost to 12.5 energy and channeling cost to 0.75 energy per second.
    • Has no negative effects on this ability.
  • Maximized Ability Range increases range to 42 meters.
    • Reduces damage to 160 per explosion and status chance to 14%.
  • Maximized Ability Strength increases damage to 1648 per explosion and status chance to 100%.
    • Without Energy Conversion and Growing Power, increases damage to 1348 per explosion. Status chance is not affected.
    • Increases activation cost to 77.5 energy and channeling cost to 6.41 energy per second.

With Ember's Ignition passive active:

See AlsoEdit