Accelerant

• Ember releases a wave of accelerant, briefly stunning all enemies within a radius of 8 / 12 / 15 / 20 meters. Against affected enemies, all inflicted 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 Ember that allows Accelerant to affect friendly players within range, increasing their casting speed and giving them bonus Heat damage.

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

• 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 Banshee's 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 Valkyr's Warcry or Banshee's 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 Heat component such as Blast.