Errant Spark is a passive skill on branch 1 of Rafa's Remote Agent skill tree in Borderlands 4.
Effects
All Indirect Projectiles deal Bonus Incendiary Damage. If the Indirect Projectile already deals Incendiary Damage, double the Bonus Damage.
- Bonus Fire Damage: +8% per rank
| Rank | 1 | 2 | 3 | 4 | 5 |
|---|---|---|---|---|---|
| Bonus Fire Damage |
+8% | +16% | +24% | +32% | +40% |
| Rank | 6 | 7 | 8 | 9 | 10 |
|---|---|---|---|---|---|
| Bonus Fire Damage |
+48% | +56% | +64% | +72% | +80% |
Class Mods
These class mods can have bonuses to Errant Spark:
Change History
- The April 30th, 2026 patch adjusted Errant Spark to still trigger when the player is firing missiles.
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