Please do not use this article for critical in-game information!
This article is archived.
The content was relevant to an obsolete version of Warframe, and has since been removed, retrieved, and/or revamped.
Preceded by
Overheat since Update 11.5 (2013-12-19)
Succeeded by
Immolation since Update 26
AccelerantModU15.jpeg Overheat.png
Stun nearby enemies with strong accelerant. Increases all fire damage dealt.
Strength:1.5x / 1.75x / 2x / 2.5x (damage multiplier)
Duration:30 s
Range:8 / 12 / 15 / 20 m
Misc:50% (cast speed bonus)

  • Ember releases a wave of accelerant, briefly stunning all enemies within a radius of 8 / 12 / 15 / 20 meters. Against affected enemies, all inflicted DmgHeatSmall64.png Heat damage will be multiplied by 150% / 175% / 200% / 250%. For Ember, casting speed will be increased by 50%. The accelerant lasts for 30 seconds.
    • Damage multiplier is affected by Ability Strength. The casting speed bonus is not.
    • Accelerant stuns enemies for one to five seconds, depending on the enemy; the stun length is not affected by Ability Duration.
    • Accelerant's casting speed buff only influences the caster, and is affected by Ability Duration.
    • Range is affected by Ability Range.
  • The calculation for casting time is:
    • Cast Time = Base Time ÷ (1 + Speed Bonus)
    • At max rank, expect a ~33% reduction to cast times:
      • Cast Time = Base Time ÷ (1 + 0.5)
      • = Base Time ÷ (3/2)
      • = Base Time × (2/3)
    • Animation cast speeds are unchanged, the ability only takes effect earlier independently of the animation.[possible bug]

Main article: Flash Accelerant

Flash Accelerant is a Warframe Augment Mod for EmberIcon272.png Ember that allows Accelerant to affect friendly players within range, increasing their casting speed and giving them bonus DmgHeatSmall64.png Heat damage.

Rank Casting speed DmgHeatSmall64.png Heat damage Cost
0 +20% +50% 6
1 +30% +50% 7
2 +40% +50% 8
3 +50% +50% 9

Tips & Tricks
  • All of Ember's abilities other than this ability itself will benefit incredibly as the other 3 abilities entirely do Fire damage.
  • Combining Accelerant with BansheeIcon272.png Banshee's Sonar130xDark.png Sonar will increase Fire damage excessively if affected targets are hit specifically on the highlighted spots.
  • This ability causes mobs to go into the "on-fire stun" effect 100% of the time, which can be used as a panic crowd-control ability, similar to ValkyrIcon272.png Valkyr's Warcry130xDark.png Warcry or BansheeIcon272.png Banshee's SonicBoom130xDark.png Sonic Boom.
  • This ability is most effective when combined with a loadout specialized for Fire damage.
  • This ability will not increase the damage of combined elements which include a DmgHeatSmall64.png Heat component such as DmgBlastSmall64.png Blast.

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See also[]