Berserker Sack

Base Stats
Health below 20%: Become invulnerable for 0.4 seconds per Weapon inside.
Layout

Levels
- Level 11: Starting level
- Level 12: Health below 4%: 12% chance to gain 6
.
- Level 13: Health below 4%: 24% chance to gain 6
.
- Level 14: Health below 4%: 36% chance to gain 6
.
- Level 15: Health below 4%: 48% chance to gain 6
.