Ignite is a targeted summoner spell. It deals a moderate amount of true damage over 5 seconds and reduces healing and regeneration effects on the target by 50% for the duration, revealing them for the duration.
Table of true damage dealt
| Ignite True Damage | ||
|---|---|---|
| Level | Total Damage | Damage Per Second |
| 1 | 70 | 14 |
| 2 | 90 | 18 |
| 3 | 110 | 22 |
| 4 | 130 | 26 |
| 5 | 150 | 30 |
| 6 | 170 | 34 |
| 7 | 190 | 38 |
| 8 | 210 | 42 |
| 9 | 230 | 46 |
| 10 | 250 | 50 |
| 11 | 270 | 54 |
| 12 | 290 | 58 |
| 13 | 310 | 62 |
| 14 | 330 | 66 |
| 15 | 350 | 70 |
| 16 | 370 | 74 |
| 17 | 390 | 78 |
| 18 | 410 | 82 |
Overview
Ignite affords players an offensive utility and damage spell that scales with level. Throughout Season 2 and Season 3, it was a popular spell for creating a greater margin for a kill in an all-in attack, particularly useful on burst-centric champions such as mages or assassins, where a kill combo typically treads the boundary of finishing a full-health or nearly full-health opponent. In the second half of Season 3, it began to see increasing use in the support role for playstyles prone to aggressive all-ins. The changes to 
Heal and 
Exhaust in Season 4 have provided powerful tools to defend against all-ins, causing Ignite to fall out of favor among all but the most aggressive roles and weakening aggressive champions and strategies overall.
A well-placed healing reduction debuff from Ignite can severely limit the effectiveness of enemy healing items, as well as healing abilities from champions like 
Soraka, 
Vladimir, and 
Warwick. It is considered a direct counter to 
Dr. Mundo and 
Swain because they are both reliant on their healing-based ultimates. The healing-reduction debuff also applies to life steal and spell vamp effects from items and abilities such as 
The Bloodthirster and 
Morgana's 
Soul Siphon.
It should be noted that Ignite deals true damage and therefore cannot be mitigated by any form of damage reduction, although shields will take priority over health for absorbing the damage.
Notes
Cleanse removes the damage-over-time component of Ignite, but not the healing reduction.- Quicksilver item active effect will remove Ignite entirely.
- The healing debuff from Ignite does not reduce the amount of temporary health gained from shields like Barrier and Janna's Eye of the Storm or maximum health boosts such as Elixir of Fortitude and Lulu's Wild Growth.
- Multiple uses of Ignite on the same target will refresh its duration and provides no stacking effect.
- The healing debuff from Ignite does not stack with any other abilities that apply a healing debuff, such as Miss Fortune's Impure Shots or Grievous Wounds.
- Casting ignite does not interrupt channeling spells, e.g. Recall or Malzahar's Nether Grasp
- When channeling a spell, make sure to Ignite when the target is within Ignite range, otherwise your champion will break the channel in order to move within range.
- When channeling a spell, make sure to
Trivia
- The icon for Ignite shows a great resemblance to Annie's Pyromania since they are both icons of a hand holding a flame.
Patch History
V5.3:
- Ignite now interrupts champions who attempt to recall while Ignited.
V4.5:
- Reveals target for the duration.
Doesn't reveal stealth.- Bug: Stealthed targets are revealed.
V4.4:
- New particles.
- Cooldown increased to 210 seconds from 180.
- Now only usable on enemy champions.
- No longer usable on minions (still usable on jungle monsters).
- Now removes stealth when used.
- The damage over time can now be removed by Cleanse.
- Fixed a bug where its visual effect would sometimes persist far beyond the actual duration.
- Now removes stealth when used.
- Fixed a bug where itcould be cast while in stasis from Zhonya's Ring.
- Damage per level reduced to 20 from 25.
- Can no longer be removed by Cleanse.
- Fixed a bug with the tooltip cooldown value that made it seem shorter than it actually is.
- Can now be removed by Cleanse.
- Now also reduces the target’s healing and regeneration by 50%.
- Fixed an issue that prevented Ignite from being cast while silenced.
- Range increased to 600 from 550.
V0.9.25.24: Added
- Deals 50 damage plus 25 damage per level over 5 seconds. This damage is not lowered by armor or magic resistance.
- Burning Embers (mastery): While your Ignite spell is on cooldown, your champion has an additional 10 ability power.
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