What does Boss Buster do?

It increases your damage against Elites and Stage Bosses by 15%.

How do you unlock Boss Buster?

Defeat a Stage Boss within 30 seconds to add Boss Buster to your item pool.

Boss Buster

Rarity: Unknown/Unconfirmed

Effect: Deal +15% damage to Elites and Bosses.

Quick links

Browse all items database for more effects and unlocks.

Applies To

Elites & Stage Bosses

Effect Value

+15% Damage

Unlock

< 30s Stage Boss kill

🔓 How to Unlock Boss Buster

Reach a Stage Boss.
Defeat the Stage Boss in under 30 seconds of the fight.

Timing note

Community guides report the 30-second window is measured from boss spawn to death; treat this as guidance rather than official wording.

🧠 Practical Use

Boss Buster is a straightforward damage amplifier specifically for elite packs and stage bosses. It’s most helpful in runs where you’re targeting boss-gated objectives or speeding through tiers. Consider pairing with burst-oriented weapons or builds that spike single-target damage.