
Berserker Sack
Unique · Bag
Health below 20%:
- Become invulnerable for Invulnerable seconds per item inside
On shop entered:
- If there is a Fury Fungus inside:
- Get 1 Fury Fungus

Level bonusLv 2–15
When time of day changes:
- +5% → 100% chance to gain 4 per item inside
All 15 levels
- Lv 1Base item
- Lv 2When time of day changes: +5% chance to gain 4 per item inside
- Lv 310% chance
- Lv 415% chance
- Lv 530% chance
- Lv 635% chance
- Lv 740% chance
- Lv 845% chance
- Lv 950% chance
- Lv 1065% chance
- Lv 1170% chance
- Lv 1275% chance
- Lv 1380% chance
- Lv 1485% chance
- Lv 15100% chance
Balance history
Health below 20%:
- Become invulnerable for 0.3 seconds per item inside (was: per inside)
- Level Bonus now gains 4 instead of 1
- v0.37.1mentioned in patch notes
- Berserker Sack: Generates the correct number of Fury Fungus now
Health below 20%:
- Become invulnerable for 0.4 → 0.3 seconds per → inside
(Added) On shop entered:
- If there is a Fury Fungus inside:
- Get 1 Fury Fungus
- v0.37mentioned in patch notes
- Berserker Sack (Harkon): Provides Fury Fungus
Health below 20%:
- Become invulnerable for 0.4 seconds per → inside
- v0.19mentioned in patch notes
- Fixed Berserker Sack level ability triggering multiple times
- Invulnerability 2 seconds → 0.4s invulnerability per weapon inside.
Added with Harkon’s release.

